Castelle Exhibit 23.1 - -------------------------------------------------------------------------------- Consent of Independent Accountants We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Numbers 333-75247, 333-21845 and 333-06083) of Castelle of our report dated February 12, 2003 relating to the financial statements and financial statement schedule, which appears in this Form 10-K. PricewaterhouseCoopers LLP San Jose, California March 27, 2003