UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-Q

           |X| QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended March 30, 2001

          |_| TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                        Commission File Number: 0-220-20

                                    CASTELLE
             (Exact name of Registrant as specified in its charter)

                              California 77-0164056
       (State or other jurisdiction of (IRS Employer Identification No.)
                         incorporation or organization)

           855 Jarvis Drive, Suite 100, Morgan Hill, California 95037
          (Address of principal executive offices, including zip code)

                                 (408) 852-8000
              (Registrant's telephone number, including area code)

        Securities registered pursuant to Section 12(b) of the Act: NONE

 Securities registered pursuant to Section 12(g) of the Act: COMMON STOCK,
                                                                    NO PAR VALUE


Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  Registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes |X| No __

The number of shares of Common Stock outstanding as of May 8, 2001 was 4,742,060







                                    CASTELLE
                                    Form 10-Q
                                Table of Contents


                                                                                                     Page

                                                                                                   

Special Note on Forward-looking statements                                                              2

Part I.    Financial Information

     Item 1.    Financial Statements:

                Consolidated Balance Sheets                                                             3

                Consolidated Statements of Income                                                       4

                Consolidated Statements of Cash Flows                                                   5

                Notes to Consolidated Financial Statements                                              6


     Item 2.    Management's Discussion and Analysis of Financial Condition
                and Results of Operations                                                               9


Part II.   Other Information

     Item 1.    Legal Proceedings                                                                      12

     Item 2.    Changes in Securities and Use of Proceeds                                              12

     Item 3.    Quantitative and Qualitative Disclosure about Market Risk                              12

     Item 4.    Submission of Matters to a Vote of Security Holders                                    12

     Item 5.    Other Information                                                                      12

     Item 6.    Exhibits and Reports on Form 8-K                                                       12

                Signatures                                                                             13

                Exhibit 99.1 - Press Release dated May 14, 2001                                       E-1


                                       1


                   SPECIAL NOTE ON FORWARD-LOOKING STATEMENTS

This  document  contains  forward-looking  statements  that  involve  risks  and
uncertainties.  The  Company's  operating  results may vary  significantly  from
quarter to quarter due to a variety of factors,  including  without  limitation,
the timely development,  acceptance, and pricing of new products, changes in the
Company's product and customer mix,  constraints in the Company's  manufacturing
and assembling operations, shortages or increases in the prices of raw materials
and components,  changes in pricing policy by the Company or its competitors,  a
slowdown  in the  growth  of  the  networking  market,  seasonality,  timing  of
expenditures  and economic  conditions  in the United  States,  Europe and Asia.
Words  such as  "believes,"  "anticipates,"  "expects,"  "intends"  and  similar
expressions are intended to identify forward-looking statements, but are not the
exclusive means of identifying  such  statements.  Unless the context  otherwise
requires,  references in this Form 10-Q to "we," "us," or the "Company" refer to
Castelle.  Readers are cautioned  that the  forward-looking  statements  reflect
management's  analysis  only as of the date hereof,  and the Company  assumes no
obligation  to update  these  statements.  Actual  events or results  may differ
materially from the results discussed in the forward-looking statements. Factors
that might cause such a difference include, but are not limited to the risks and
uncertainties  discussed  herein,  as well as other  risks set  forth  under the
caption  "Risk  Factors" in the  Company's  Annual  Report on Form 10-K and Form
10-K/A for the fiscal  year ended  December  31,  2000.  We urge you to consider
these cautionary statements in evaluating our forward-looking statements. Except
as  required  by laws,  we  undertake  no  obligations  to  publicly  update any
forward-looking statements to reflect subsequent events and circumstances.


                                       2





                         Part I - Financial Information

Item 1.    Financial Statements

                            CASTELLE AND SUBSIDIARIES
                           Consolidated Balance Sheets
                                 (in thousands)

                                                                      March 30, 2001         December 31, 2000
                                                                        (unaudited)              (audited)
                                                                  ----------------------   --------------------
Assets:
                                                                                             
   Current assets:
     Cash and cash equivalents                                             $   3,571               $  3,893
     Restricted cash                                                               -                    125
     Accounts receivable, net of allowance for doubtful accounts
        of $323 in 2001 and $285 in 2000                                       1,297                  2,083
     Inventories, net                                                          1,513                  1,363
     Prepaid expense and other current assets                                    229                    209
                                                                  ----------------------   --------------------
        Total current assets                                                   6,610                  7,673
   Property, plant & equipment, net                                              760                    768
   Other non-current assets, net                                                 100                    102
                                                                  ----------------------   --------------------
        Total assets                                                        $  7,470               $  8,543
                                                                  ======================   ====================

Liabilities & Shareholders' Equity:
   Current liabilities:
     Long-term debt, current portion                                         $     7                 $    9
     Accounts payable                                                            523                  1,014
     Accrued liabilities                                                       2,505                  2,681
                                                                  ----------------------   --------------------
        Total current liabilities                                              3,035                  3,704
         Long term debt, net of current portion                                   63                     63
                                                                  ----------------------   --------------------
                                                                  ----------------------   --------------------
        Total liabilities                                                      3,098                  3,767
                                                                  ----------------------   --------------------

   Shareholders' equity:
     Common stock, no par value:
        Authorized:  25,000 shares
        Issued and outstanding: 4,742 and 4,741 respectively                  28,979                 28,976
     Deferred compensation                                                       (16)                   (17)
     Accumulated deficit                                                     (24,591)               (24,183)
                                                                  ----------------------   --------------------
        Total shareholders' equity                                             4,372                  4,776
                                                                  ----------------------   --------------------
        Total liabilities & shareholders' equity                            $  7,470               $  8,543
                                                                  ======================   ====================


     See accompanying notes to condensed consolidated financial statements.



                                       3





                            CASTELLE AND SUBSIDIARIES
                      Consolidated Statements of Operations
                    (in thousands, except per share amounts)
                                   (unaudited)


                                                                              Three months ended
                                                                    ......................................
                                                                      March 30, 2001      March 31, 2000
                                                                    -----------------   ------------------

                                                                                         
 Net sales                                                                $ 2,349              $ 4,100
 Cost of sales                                                                698                1,649
                                                                    -----------------   ------------------
     Gross profit                                                           1,651                2,451
                                                                    -----------------   ------------------

 Operating expenses:
     Research and development                                                 385                  505
     Sales and marketing                                                    1,126                1,312
     General and administrative                                               444                  466
     Restructuring charges                                                    180                    -
                                                                    -----------------   ------------------
        Total operating expenses                                            2,135                2,283
                                                                    -----------------   ------------------
 Income/(loss) from operations                                               (484)                 168

     Interest income, net                                                      33                   37
     Other income/(expense), net                                               43                  (30)
                                                                    -----------------   ------------------
 Income/(loss) before provision for income taxes                             (408)                 175
     Provision for income taxes                                                 -                    6
                                                                    -----------------   ------------------
 Net income/(loss)                                                         $ (408)               $ 169
                                                                    =================   ==================

 Earnings per share:
    Net income/(loss) per common share - basic                            $ (0.09)              $ 0.04
    Shares used in per share calculation - basic                            4,741                4,660

    Net income/(loss) per common share - diluted                          $ (0.09)              $ 0.03
    Shares used in per share calculation - diluted                          4,741                5,330


     See accompanying notes to condensed consolidated financial statements.


                                       4





                            CASTELLE AND SUBSIDIARIES
                      Consolidated Statements of Cash Flows
                                 (in thousands)
                                   (unaudited)


                                                                              Three months ended
                                                                    ......................................
                                                                      March 30, 2001      March 31, 2000
                                                                    -----------------   ------------------
 Cash flows from operating activities:
                                                                                          
    Net income (loss)                                                      $ (408)              $  169
    Adjustment to reconcile net income (loss) to net cash
     provided by operating activities:
      Depreciation and amortization                                            64                   86
      Provision for doubtful accounts and sales returns                       134                 (122)
      Provision for excess and obsolete inventory                              72                 (101)
      Compensation expense related to grant of stock options                    4                   13
      Changes in assets and liabilities:
       Accounts receivable                                                    652                  237
       Inventories                                                           (222)                 207
       Prepaid expenses and other current assets                              (20)                   4
       Accounts payable                                                      (491)                (543)
       Accrued liabilities and other long-term liabilities                   (176)                (200)
       Decrease in other assets                                                 2                    8
                                                                    -----------------   ------------------
         Net cash used in operating activities                               (389)                (242)
                                                                    -----------------   ------------------

 Cash flows from investing activities:
    Return of restricted cash                                                 125                    -
    Acquisition of property, plant and equipment                              (56)                 (21)
                                                                    -----------------   ------------------
            Net cash provided by/(used in) investing activities                69                  (21)
                                                                    -----------------   ------------------

 Cash flows from financing activities:
    Repayment of loan                                                          (2)                 (26)
    Proceeds from issuance of common stock and warrants, net of
      repurchases                                                               -                   13
                                                                    -----------------   ------------------
         Net cash used in financing activities                                 (2)                 (13)
                                                                    -----------------   ------------------


 Net decrease in cash and cash equivalents                                   (322)                (276)

 Cash and cash equivalents at beginning of period                           3,893                4,714
                                                                    -----------------   ------------------
 Cash and cash equivalents at end of period                               $ 3,571              $ 4,438
                                                                    =================   ==================


     See accompanying notes to condensed consolidated financial statements.


                                       5


                            CASTELLE AND SUBSIDIARIES
                   Notes To Consolidated Financial Statements
                                   (unaudited)


1.   Basis of Presentation:

     The accompanying  unaudited  consolidated  financial statements include the
     accounts  of  Castelle  and its  wholly  owned  subsidiaries  in the United
     Kingdom and the  Netherlands,  and have been  prepared in  accordance  with
     accounting  principles  generally accepted in the United States of America.
     All  intercompany  balances and transactions  have been eliminated.  In the
     opinion of management,  all  adjustments  (consisting  of normal  recurring
     accruals)  considered  necessary for a fair  presentation  of the Company's
     financial  position,  results of operations and cash flows at the dates and
     for the periods indicated have been included.  The result of operations for
     the interim period  presented is not necessarily  indicative of the results
     for the year ending  December  31,  2001.  Because  all of the  disclosures
     required by accounting  principles  generally accepted in the United States
     of America are not  included  in the  accompanying  consolidated  financial
     statements and related notes,  they should be read in conjunction  with the
     audited consolidated financial statements and related notes included in the
     Company's Form 10-K and Form 10-K/A for the fiscal year-ended  December 31,
     2000.  The year ended  condensed  balance  sheet data was derived  from our
     audited  financial  statements and does not include all of the  disclosures
     required by accounting  principles  generally accepted in the United States
     of  America.  The  income  statements  for the  periods  presented  are not
     necessarily indicative of results that we expect for any future period, nor
     for the entire year.  Prior year amounts have been  reclassified to conform
     with current presentation.

2.   Net Income/Loss Per Share:

     Basic net  income/loss  per share is computed by dividing  net  income/loss
     available to common  shareholders by the weighted  average number of common
     shares  outstanding  for that  period.  Diluted net  income/loss  per share
     reflects the  potential  dilution  from the exercise or conversion of other
     securities  into  common  stock that were  outstanding  during the  period.
     Shares that are potentially  dilutive consist of incremental  common shares
     issuable upon exercise of stock options and warrants.

                                       6


     Basic and diluted  earnings per share are  calculated  as follows for first
     quarters of 2001 and 2000:



                                                                  (in thousands,
                                                            except per share amounts)
                                                                   (unaudited)
                                                           .............................
                                                            March 30,       March 31,
                                                               2001           2000
                                                           -------------  --------------
                                                                         
Basic:
   Weighted average common shares outstanding                   4,741           4,660
                                                           =============  ==============
   Net income/(loss)                                         $  (408)          $  169
                                                           =============  ==============
   Net income/(loss) per common share - basic                $ (0.09)          $ 0.04
                                                           =============  ==============

Diluted:
   Weighted average common shares outstanding                   4,741           4,660
   Common equivalent shares from stock warrants                     -              55
   Common equivalent shares from stock options                      -             615
                                                           -------------  --------------
   Shares used in per share calculation - diluted               4,741           5,330
                                                           =============  ==============
   Net income/(loss)                                         $  (408)          $  169
                                                           =============  ==============
   Net income/(loss) per common share - diluted              $ (0.09)          $ 0.03
                                                           =============  ==============


     The  calculation of diluted  shares  outstanding at March 30, 2001 excludes
     1,314,000 stock options, as their effect was antidilutive in the period. At
     March 31, 2000  warrants  totaling  100,000 were  excluded,  because  their
     exercise  price was greater than the average  common stock market price for
     the period.

3.   Inventories:

     Inventories  are stated at the lower of standard  cost (which  approximates
     cost on a  first-in,  first-out  basis) or market and net of  reserves  for
     excess and obsolete inventory. Inventory details are as follows:




                                                         (in thousands)
                                                          (unaudited)
                                                .................................
                                                   March 30,       December 31,
                                                     2001              2000
                                                ----------------  ---------------
                                                               
  Raw material                                      $  354           $  488
  Work in process                                      315              201
  Finished goods                                       960              773
  Inventory Reserve                                   (453)            (381)
                                              ---------------- ----------------
               Total Inventory                    $  1,513          $ 1,363
                                              ================ ================


4.   Revenue Recognition:

     Product revenue is recognized  upon shipment if a signed  contract  exists,
     the fee is fixed and determinable,  collection of the resulting receivables
     is probable  and  product  returns are  reasonably  estimable.  The Company
     enters  into  agreements  with  certain of its  distributors  which  permit
     limited  stock  rotation  rights.  These stock  rotation  rights  allow the
     distributor  to return  products  for credit but  require  the  purchase of
     additional  products of equal  value.  Revenues  subject to stock  rotation
     rights are reduced by  management's  estimates  of  anticipated  exchanges.
     Provisions for estimated  warranty costs and anticipated  retroactive price
     adjustments  are recorded at the time  products  are  shipped.  The Company
     recognizes  revenue from the sale of extended  warranty  contracts  ratably
     over the period of the contracts.


                                       7



5.   Segments Disclosure:

     The Company has determined that it operates in one segment.

6.   Comprehensive Income:

     Under  SFAS  No.  130,  "Reporting   Comprehensive  Income"  disclosure  of
     comprehensive   income  and  its   components   is  required  in  financial
     statements.  Comprehensive income is the change in equity from transactions
     and  other  events  and  circumstances  other  than  those  resulting  from
     investments by owners and distributions to owners. There are no significant
     components of comprehensive income excluded from net income,  therefore, no
     separate statement of comprehensive income has been presented.

     The  Company  recognized  a  restructuring  charge of $180,000 in the first
     quarter of fiscal 2001,  which included an asset write-off and other direct
     expenses  associated with the consolidation of our operations in the United
     Kingdom and El Dorado Hills,  California.  In addition, the Company made an
     announcement  in  April  2001  to  eliminate  17  regular,   temporary  and
     contractor positions, which constitutes approximately 25% of our workforce.
     This action will result in a severance charge of approximately  $100,000 in
     the second quarter of fiscal 2001.

7.   New accounting pronouncements:

     Under SFAS No. 133,  "Accounting  for  Derivative  Instruments  and Hedging
     Activities,"  companies are required to recognize all derivatives as either
     assets or liabilities in the statement of financial position and to measure
     those instruments at fair value.  Changes in fair value shall be recognized
     currently in earnings.  This  standard was  effective  for the Company from
     January 1, 2001.  At that time,  the  Company  did not have any  derivative
     instruments, nor has it engaged in hedging activities to date.


                                       8



Item 2. Management's  Discussion and Analysis of Financial Condition and Results
        of Operations

This Management's  Discussion and Analysis of Financial Condition and Results of
Operations  contains  forward-looking  statements that are subject to many risks
and uncertainties  that could cause actual results to differ  significantly from
expectations.  For more information on forward-looking statements,  refer to the
"Special Note on Forward-Looking Statements" at the front on this Form 10-Q. The
following discussion should be read in conjunction with the Financial Statements
and the Notes thereto  included in Item 1 of this Quarterly  Report on Form 10-Q
and in the  Company's  Form  10-K and Form  10-K/A  for the  fiscal  year  ended
December 31, 2000.




        Consolidated Statements of Income - As a Percentage of Net Sales


                                                                            (unaudited)
                                                                        Three months ended
                                                               ......................................
                                                                 March 30, 2001      March 31, 2000
                                                               ------------------  ------------------

                                                                                       
Net sales                                                                100%                100%
Cost of sales                                                             30%                 40%
                                                               ------------------  ------------------
    Gross profit                                                          70%                 60%
                                                               ------------------  ------------------

Operating expenses:
    Research and development                                              16%                 13%
    Sales and marketing                                                   48%                 32%
    General and administrative                                            19%                 11%
    Restructuring charges                                                  8%                 --
                                                               ------------------  ------------------
       Total operating expense                                            91%                 56%
Income/(loss) from operations                                            (21%)                 4%
    Interest income, net                                                   2%                  *
    Other income/(expense), net                                            2%                  *
                                                               ------------------  ------------------
Income/(loss) before provision for income taxes                          (17%)                 4%
    Provision for income taxes                                            --                   *
                                                               ------------------  ------------------
Net Income/(loss)                                                        (17%)                 4%
                                                               ==================  ==================


 * Less than 1%


                                       9



Results of Operations

     Net Sales

          Net sales for the first quarter of fiscal 2001 were $2.3  million,  as
     compared  to $4.1  million  for the same  period in fiscal  2000.  The $1.8
     million  reduction was primarily  attributable to continued  decline in the
     sales  of  print  server   products  which  amounted  to  $624,000   mostly
     attribuatble  to a  decline  in  sales  in  international  channels  and  a
     shortfall in the sales of fax server products of $1.1 million domestically.

          International  sales in the first quarter of fiscal 2001 were $451,000
     as  compared  to  $1.2   million  for  the  same  period  in  fiscal  2000,
     representing 19% and 28%, respectively, of total net sales. The decline was
     largely due to reduced demand of print server  products in the Asia Pacific
     Region.  In  addition,  beginning in the first  quarter of fiscal 2001,  we
     changed from a model of selling our print server  products  directly to our
     distributor in Japan to a royalty  collection  model.  The royalty  amounts
     received by us in the first quarter of fiscal 2001 were not significant.

          Domestic  sales in the first  quarter of fiscal 2001 were $1.9 million
     as  compared  to  $2.9   million  for  the  same  period  in  fiscal  2000,
     representing  81% and 72%,  respectively,  of total net sales. The decrease
     was principally due to a weaker demand of fax server products.

     Cost of Sales; Gross Profit

          Gross  profit was $1.7  million,  or 70% of net  sales,  for the first
     quarter of fiscal  2001 as compared  to $2.5  million,  or 60% for the same
     period in fiscal  2000.  The higher gross  profit  percentage  in the first
     quarter  of fiscal  2001 was mostly  due to the mix of  products  sold at a
     higher  average  selling  price.  The change in the first quarter of fiscal
     2001 to a royalty  collection  model from directly selling our print server
     products to our  distributor in Japan also  contributed to the higher gross
     profit. However, the amount of royalties received was not significant.

     Research & Development

          Research and product development  expenses were $385,000 or 16% of net
     sales for the first  quarter of fiscal 2001, as compared to $505,000 or 13%
     of net sales for the same period in fiscal 2000. The decrease was primarily
     due to lower compensation and outside consulting expenses.

     Sales & Marketing

          Sales and marketing expenses were $1.1 million or 48% of net sales for
     the first  quarter of fiscal 2001 as compared to $1.3 million or 32% of net
     sales for the same  period  in  fiscal  2000.  The  reduction  of sales and
     marketing  expenses  was  primarily   associated  with  lower  compensation
     expenses.

     General & Administrative

          General and administrative  expenses were $444,000 or 19% of net sales
     for the first quarter of fiscal 2001,  comparable to $466,000 or 11% of net
     sales for the first quarter of fiscal 2000.


                                       10


     Restructuring

          We recognized a restructuring  charge of $180,000 in the first quarter
     of fiscal 2001, which included an asset write-off and other direct expenses
     associated with the  consolidation  of our operations in the United Kingdom
     and El Dorado Hills,  California.  In addition,  we made an announcement in
     April 2001 to eliminate 17 regular,  temporary  and  contractor  positions,
     which  constitutes  approximately  25% of our  workforce.  This action will
     result  in a  severance  charge of  approximately  $100,000  in the  second
     quarter of fiscal 2001.

Liquidity and Capital Resources

     As of March 30, 2001, we had $3.6 million of cash and cash  equivalents,  a
decrease of $322,000 from December 31, 2000.  Working capital  decreased to $3.6
million at March 30, 2001,  from $4.0 million at December 31, 2000. The decrease
in working capital was primarily due to the overall decrease in sales.

     The  restricted  cash of  $125,000  appearing  on our  balance  sheet as of
December 31, 2000,  which was a certificate of deposit to  collateralize a loan,
was  returned to us in February  2001.  The loan was  completely  paid off as of
December 31, 2000.

     We have a $3.0 million  secured  revolving  line of credit with a bank from
which we may borrow  100%  against  pledges of cash at the  bank's  prime  rate.
Borrowings under this line of credit agreement are  collateralized by all of our
assets. This loan agreement has been renegotiated and its term has been extended
until March 17,  2002.  As of March 30, 2001,  we had not borrowed  against this
line.

     In December 2000, as a source of capital asset financing, we entered into a
loan and  security  agreement  with a finance  company for an amount of $75,000.
This loan is subject to interest of 12.8% and is repayable by December  2006. As
of March 30, 2001, the future minimum payments were $99,000.

     In April 2001,  as a source of capital asset  financing,  we entered into a
loan and  security  agreement  with a finance  company for an amount of $25,000.
This loan is subject to interest of 12.5% and is repayable by April 2004.  As of
April 30, 2001, the future minimum payments were $30,000.

     As of March 30, 2001, net accounts receivable were $1.3 million,  down from
$2.1 million at December 31, 2000.  The decrease in net accounts  receivable was
chiefly  attributed to improved  collection of outstanding  balances and reduced
sales in the first quarter of fiscal 2001.  The number of days for which payment
for sales is  outstanding  was reduced  from 58 days at December  31, 2000 to 50
days at March 30, 2001.

     Net  inventories  as of March  30,  2001 were  $1.5  million,  up from $1.3
million at December 31,  2000.  The  increase  was largely  attributable  to the
slower sales in the first  quarter of fiscal 2001.  Inventory  turnover for this
current quarter slowed to an equivalent of 1.8 turns per year from 3.5 turns per
year in the prior quarter.

     Although we believe that our existing capital  resources,  anticipated cash
flows from  operations and available  lines of credit will be sufficient to meet
our capital  requirements for at least the next 12 months, we may be required to
seek additional equity or debt financing.  The timing and amount of such capital
requirements  cannot be  determined  at this time and will depend on a number of
factors,  including  demand for our  existing  and new  products and the pace of
technological change in the networking industry.  There can be no assurance that
such additional  financing will be available on satisfactory  terms when needed,
if at all.
     We  believe  that,  for  the  periods  presented,  inflation  has not had a
material effect on our operations.

                                       11


                           PART II - OTHER INFORMATION


Item 1.    Legal Proceedings

     None.


Item 2.    Changes in Securities and use of proceeds

     None


Item 3.    Quantitative and Qualitative disclosure about market risk

     The  Company  believes  that  there  have been no  material  changes in the
reported  market risks faced by the Company since the fiscal year ended December
31, 2000.  These and other risk factors are discussed in more detail in our Form
10-K and Form  10-K/A for the  fiscal  year ended  December  31,  2000 under the
section "Risk Factors".

Item 4.    Submission of Matters to a Vote of Security Holders

     None.


Item 5.    Other Information

     In April 2001,  we announced a worldwide  restructuring  of the Company and
consolidated  our  operations  in  the  United  Kingdom  and  El  Dorado  Hills,
California.  We  recognized  a  restructuring  charge of  $180,000  in the first
quarter of fiscal  2001,  which  included an asset  write-off  and other  direct
expenses  associated  with this  consolidation.  We also  eliminate  17 regular,
temporary and contractor positions,  which constitutes  approximately 25% of our
workforce,  which will result in a severance charge of approximately $100,000 in
the second quarter of fiscal 2001.

Item 6.     Exhibits and Reports on Form 8-K

            (a)      Exhibits:

                  99.1     Press Release dated May 14, 2001

            (b)      Reports on Form 8-K

                  None

                                       12



                                   SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.

CASTELLE

By:   /s/ Donald L. Rich                                  Date: May 14, 2001
      Donald L. Rich
      Chairman of the Board and Director
      Chief Executive Officer and President
      (Principal Executive Officer)

By:   /s/ Paul Cheng                                      Date: May 14, 2001
      Paul Cheng
      Vice President of Finance and Administration
      Chief Financial Officer
      (Principal Financial and Chief Accounting Officer)
      Secretary

                                       13