<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FINANCIAL
STATEMENTS FOR THE SIX MONTHS ENDED SEPTEMBER 30,1997 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-1997
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                          23,225
<SECURITIES>                                         0
<RECEIVABLES>                                   32,810
<ALLOWANCES>                                     1,384
<INVENTORY>                                     23,218
<CURRENT-ASSETS>                                92,039
<PP&E>                                          18,616
<DEPRECIATION>                                   8,681
<TOTAL-ASSETS>                                 104,160
<CURRENT-LIABILITIES>                           29,159
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        69,263
<OTHER-SE>                                       5,738
<TOTAL-LIABILITY-AND-EQUITY>                   104,160
<SALES>                                         77,998
<TOTAL-REVENUES>                                77,998
<CGS>                                           43,902
<TOTAL-COSTS>                                   43,902
<OTHER-EXPENSES>                                23,092
<LOSS-PROVISION>                                  (461)
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 11,999
<INCOME-TAX>                                     4,320
<INCOME-CONTINUING>                              7,679
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     7,679
<EPS-PRIMARY>                                     0.67
<EPS-DILUTED>                                        0