<ARTICLE> 5
<RESTATED>
       
                                                
<PERIOD-TYPE>                   YEAR                  
<FISCAL-YEAR-END>                          MAR-31-1997
<PERIOD-START>                             APR-01-1996
<PERIOD-END>                               MAR-31-1997
<CASH>                                          30,323
<SECURITIES>                                         0
<RECEIVABLES>                                   13,086
<ALLOWANCES>                                       764
<INVENTORY>                                     13,154
<CURRENT-ASSETS>                                58,073
<PP&E>                                          12,084
<DEPRECIATION>                                   6,786
<TOTAL-ASSETS>                                  63,524
<CURRENT-LIABILITIES>                           12,681
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           103
<OTHER-SE>                                      50,439
<TOTAL-LIABILITY-AND-EQUITY>                    63,524
<SALES>                                         57,423
<TOTAL-REVENUES>                                57,423
<CGS>                                           31,552
<TOTAL-COSTS>                                   31,552
<OTHER-EXPENSES>                                10,531
<LOSS-PROVISION>                                    13
<INTEREST-EXPENSE>                                 118
<INCOME-PRETAX>                                  4,180
<INCOME-TAX>                                     1,040
<INCOME-CONTINUING>                              3,140
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,140
<EPS-PRIMARY>                                      .31
<EPS-DILUTED>                                      .29