<ARTICLE>                     5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S CONSOLIDATED FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                  1,000
       
                           
<PERIOD-TYPE>                 6-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-START>                                 JAN-01-1998
<PERIOD-END>                                   JUN-30-1998
<CASH>                                              33,185
<SECURITIES>                                             0
<RECEIVABLES>                                       19,790
<ALLOWANCES>                                           468
<INVENTORY>                                         18,653
<CURRENT-ASSETS>                                    73,706
<PP&E>                                              12,812
<DEPRECIATION>                                       8,881
<TOTAL-ASSETS>                                      92,687
<CURRENT-LIABILITIES>                               12,688
<BONDS>                                                  0
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                              0
<COMMON>                                            51,967
<OTHER-SE>                                          27,801
<TOTAL-LIABILITY-AND-EQUITY>                        92,687
<SALES>                                             57,788
<TOTAL-REVENUES>                                    57,788
<CGS>                                               38,184
<TOTAL-COSTS>                                       14,913
<OTHER-EXPENSES>                                         0
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                                     606
<INCOME-PRETAX>                                      5,297
<INCOME-TAX>                                         1,849
<INCOME-CONTINUING>                                  3,448
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                         3,448
<EPS-PRIMARY>                                         0.44
<EPS-DILUTED>                                         0.43