<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 9-MOS 9-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-1999
<PERIOD-START> JAN-01-2000 JAN-01-1999
<PERIOD-END> SEP-30-2000 SEP-30-1999
<CASH> 72,495 19,152
<SECURITIES> 0 0
<RECEIVABLES> 5,220 3,015
<ALLOWANCES> (129) (129)
<INVENTORY> 3,174 2,322
<CURRENT-ASSETS> 83,377 24,800
<PP&E> 7,176 5,051
<DEPRECIATION> (3,593) (2,749)
<TOTAL-ASSETS> 88,459 30,770
<CURRENT-LIABILITIES> 8,890 7,007
<BONDS> 0 0
0 0
0 57,426
<COMMON> 188 23
<OTHER-SE> 140,732 14,515
<TOTAL-LIABILITY-AND-EQUITY> 72,358 (34,604)
<SALES> 10,291 8,833
<TOTAL-REVENUES> 16,560 11,642
<CGS> 4,780 3,850
<TOTAL-COSTS> 28,689 21,786
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 143 60
<INCOME-PRETAX> (11,218) (9,265)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> 0 0
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (11,218) (9,265)
<EPS-BASIC> (2.20) (4.99)
<EPS-DILUTED> (2.20) (4.99)
</TABLE>