<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FINANCIAL
STATEMENTS FOR THE NINE MONTHS ENDED DECEMBER 31, 1999 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          MAR-31-2000
<PERIOD-START>                             APR-01-1999
<PERIOD-END>                               DEC-31-1999
<CASH>                                          95,291
<SECURITIES>                                    11,960
<RECEIVABLES>                                   46,934
<ALLOWANCES>                                   (2,023)
<INVENTORY>                                     34,616
<CURRENT-ASSETS>                               210,079
<PP&E>                                          37,475
<DEPRECIATION>                                (22,294)
<TOTAL-ASSETS>                                 245,377
<CURRENT-LIABILITIES>                           40,020
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       222,657
<OTHER-SE>                                    (17,300)
<TOTAL-LIABILITY-AND-EQUITY>                   245,377
<SALES>                                        131,598
<TOTAL-REVENUES>                               131,598
<CGS>                                           72,672
<TOTAL-COSTS>                                   57,683
<OTHER-EXPENSES>                               (1,088)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 144
<INCOME-PRETAX>                                  2,331
<INCOME-TAX>                                     2,124
<INCOME-CONTINUING>                                207
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       207
<EPS-BASIC>                                       0.01
<EPS-DILUTED>                                     0.01