<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
UNAUDITED MARCH 31, 1998 CONDENSED BALANCE SHEET AND THE UNAUDITED CONDENSED
STATEMENT OF OPERATIONS FOR THE THREE MONTHS ENDED MARCH 31, 1998, AND THE
UNAUDITED NOTES THERETO AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1998
<PERIOD-END>                               MAR-31-1997             MAR-31-1998
<CASH>                                               0                   1,433
<SECURITIES>                                         0                   6,972
<RECEIVABLES>                                    3,992                  17,716
<ALLOWANCES>                                        52                     445
<INVENTORY>                                        974                   3,575
<CURRENT-ASSETS>                                 5,484                  31,540
<PP&E>                                           1,789                   3,052
<DEPRECIATION>                                     353                   1,024
<TOTAL-ASSETS>                                   9,753                  36,182
<CURRENT-LIABILITIES>                            6,716                   8,464
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                             0                      72
<OTHER-SE>                                       1,527                  27,265
<TOTAL-LIABILITY-AND-EQUITY>                     9,753                  36,182
<SALES>                                          4,375                  15,658
<TOTAL-REVENUES>                                 4,375                  15,799
<CGS>                                            2,861                  10,253
<TOTAL-COSTS>                                    3,671                  13,717
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                     327
<INTEREST-EXPENSE>                                  61                       0
<INCOME-PRETAX>                                    643                   2,082
<INCOME-TAX>                                       246                     797
<INCOME-CONTINUING>                                397                   1,285
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                       397                   1,285
<EPS-PRIMARY>                                     0.09                    0.18
<EPS-DILUTED>                                     0.07                    0.17
        

</TABLE>