<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM DECEMBER 31, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENT. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> JUN-30-1998 <PERIOD-START> JUL-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 10,905 <SECURITIES> 14,569 <RECEIVABLES> 6,838 <ALLOWANCES> 1,347 <INVENTORY> 5,757 <CURRENT-ASSETS> 37,200 <PP&E> 7,377 <DEPRECIATION> 3,121 <TOTAL-ASSETS> 41,975 <CURRENT-LIABILITIES> 6,592 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 24,091 <OTHER-SE> 11,104 <TOTAL-LIABILITY-AND-EQUITY> 41,975 <SALES> 23,372 <TOTAL-REVENUES> 23,372 <CGS> 13,979 <TOTAL-COSTS> 20,364 <OTHER-EXPENSES> 70 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 3,324 <INCOME-TAX> 1,097 <INCOME-CONTINUING> 2,227 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,227 <EPS-PRIMARY> 0.44 <EPS-DILUTED> 0.25