<ARTICLE> 5
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             APR-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          36,510
<SECURITIES>                                    16,211
<RECEIVABLES>                                   34,317
<ALLOWANCES>                                     1,008
<INVENTORY>                                     19,219
<CURRENT-ASSETS>                               111,850
<PP&E>                                          19,030
<DEPRECIATION>                                  10,661
<TOTAL-ASSETS>                                 125,949
<CURRENT-LIABILITIES>                           36,965
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            18
<OTHER-SE>                                      88,966
<TOTAL-LIABILITY-AND-EQUITY>                   125,949
<SALES>                                         45,112
<TOTAL-REVENUES>                                45,112
<CGS>                                           20,172
<TOTAL-COSTS>                                   20,172
<OTHER-EXPENSES>                                14,292
<LOSS-PROVISION>                                   170
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 10,478
<INCOME-TAX>                                     3,667
<INCOME-CONTINUING>                              6,811
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     6,811
<EPS-BASIC>                                       0.22
<EPS-DILUTED>                                     0.20