<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   9-MOS                   3-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1998             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JUL-01-1998             JAN-01-1998             JUL-01-1997             JAN-01-1997
<PERIOD-END>                               SEP-30-1998             SEP-30-1998             SEP-30-1997             SEP-30-1997
<CASH>                                           1,850                   1,850                     212                     212
<SECURITIES>                                         0                       0                       0                       0
<RECEIVABLES>                                   25,245                  25,245                  10,670                  10,670
<ALLOWANCES>                                       353                     353                     118                     118
<INVENTORY>                                     15,947                  15,947                   4,161                   4,161
<CURRENT-ASSETS>                                48,131                  48,131                  15,547                   4,679
<PP&E>                                          10,220                  10,220                   6,098                   6,098
<DEPRECIATION>                                     510                   1,218                     234                     376
<TOTAL-ASSETS>                                  77,123                  77,123                  28,105                  28,105
<CURRENT-LIABILITIES>                           19,868                  19,868                  10,243                  10,243
<BONDS>                                              0                       0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                            83                      83                      59                      59
<OTHER-SE>                                      38,573                  38,573                  16,881                  16,881
<TOTAL-LIABILITY-AND-EQUITY>                    77,123                  77,123                  28,105                  28,105
<SALES>                                         29,989                  65,282                  13,913                  29,141
<TOTAL-REVENUES>                                29,989                  65,282                  13,913                  29,141
<CGS>                                           20,121                  44,914                   9,803                  19,059
<TOTAL-COSTS>                                   20,121                  44,914                   9,803                  19,059
<OTHER-EXPENSES>                                 7,278                  17,777                   3,104                   8,823
<LOSS-PROVISION>                                    53                      63                      11                      11
<INTEREST-EXPENSE>                                 439                     779                     179                     430
<INCOME-PRETAX>                                  2,298                   2,165                     827                     829
<INCOME-TAX>                                         0                       0                       0                       0
<INCOME-CONTINUING>                              2,298                   2,165                     827                     829
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                     2,298                   2,165                     827                     829
<EPS-PRIMARY>                                      .14                     .13                     .07                     .07
<EPS-DILUTED>                                      .12                     .11                     .05                     .06
        

</TABLE>