SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549
                             -----------------------
                                    FORM 8-K
                                 CURRENT REPORT
                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

         Date of Report (Date of Earliest Event Reported): July 26, 2004

                             -----------------------

                                    Castelle

             (Exact Name of Registrant as Specified in Its Charter)



                                   California

                 (State or Other Jurisdiction of Incorporation)



       000-22020                                           77-0164056

(Commission File Number)                       (IRS Employer Identification No.)


             855 Jarvis Drive
                Suite 100
        Morgan Hill, California                                  95037

(Address of Principal Executive Offices)                       (Zip Code)



                                 (408) 852-8000

              (Registrant's Telephone Number, Including Area Code)



                                 Not Applicable

          (Former Name or Former Address, if Changed Since Last Report)







Item 7. Financial Statements and Exhibits

                 (c)       Exhibits


                  The following exhibit is being furnished herewith:

  Exhibit
  Number                       Description
_________                      ___________

        99.1                   Text of press release issued by Castelle dated
                               July 19, 2004.*

                  *   This information shall not be deemed "filed" for purposes
                      of Section 18 of the Securities Exchange Act of 1934, and
                      shall not be deemed incorporated by reference in any
                      filing with the Securities and Exchange Commission under
                      the Securities Exchange Act of 1934 or the Securities Act
                      of 1933, whether made before or after the date hereof and
                      irrespective of any general incorporation language in any
                      filings.



Item 12. Results of Operations and Financial Condition.


         (a) The information contained in this Item 12, and the exhibit hereto,
are being furnished and shall not be deemed "filed" for purposes of Section 18
of the Securities Exchange Act of 1934, and shall not be deemed incorporated by
reference in any filing with the Securities and Exchange Commission under the
Securities Exchange Act of 1934 or the Securities Act of 1933, whether made
before or after the date hereof and irrespective of any general incorporation
language in any filings. On July 19, 2004, Castelle issued a press release
regarding its financial results for its first fiscal quarter ended June 30,
2004. A copy of Castelle's press release is attached hereto as Exhibit 99.1.

         The press release includes pro forma operating results. Pro forma
operating results are not based on any standardized methodology prescribed by
U.S. generally accepted accounting principles ("GAAP") and are not necessarily
comparable to similar measures presented by other companies. Pro forma operating
results should not be considered in isolation or as a substitute for operating
results prepared in accordance with GAAP. The Company has provided a
reconciliation of pro forma operating results to GAAP in the schedules of the
attached press release.

         Management utilizes pro forma operating results as a performance
measure and furnishes the information in order to provide investors with
additional information to analyze the Company's operating results and facilitate
period-to-period comparisons. Pro forma operating results include an income tax
expense at a 40% rate for the second quarter and first six months of fiscal year
2004. The impact of the pro forma adjustments to GAAP is quantified in the
reconciliation table included with the press release. The Company uses non-GAAP
measures to help clarify the overall understanding of its current operational
performance, its prospects foe the future and to provide a more consistent basis
for comparison between quarters.



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                                    SIGNATURE
         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 hereunto duly authorized.
Date: July 26, 2004

                                               Castelle



                                         By:    /s/ Paul W. Cheng
                                                Paul W. Cheng
                                                Vice President, Chief Financial
                                                Officer and Secretary


_______________________________________________________________________________


                                  EXHIBIT INDEX

 Exhibit
 Number                    Description


  99.1                   Text of press release issued by Castelle dated July 19,
                         2004. *


          *   This information shall not be deemed "filed" for purposes of
              Section 18 of the Securities Exchange Act of 1934, and shall not
              be deemed incorporated by reference in any filing with the
              Securities and Exchange Commission under the Securities Exchange
              Act of 1934 or the Securities Act of 1933, whether made before or
              after the date hereof and irrespective of any general
              incorporation language in any filings.

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