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<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 4,124
<SECURITIES> 40,670
<RECEIVABLES> 12,969
<ALLOWANCES> 490
<INVENTORY> 7,368
<CURRENT-ASSETS> 67,383
<PP&E> 8,404
<DEPRECIATION> 2,443
<TOTAL-ASSETS> 81,981
<CURRENT-LIABILITIES> 12,182
<BONDS> 0
0
0
<COMMON> 24
<OTHER-SE> 69,674
<TOTAL-LIABILITY-AND-EQUITY> 81,981
<SALES> 42,501
<TOTAL-REVENUES> 42,501
<CGS> 17,235
<TOTAL-COSTS> 17,235
<OTHER-EXPENSES> 11,840
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 5,833
<INCOME-TAX> 2,217
<INCOME-CONTINUING> 4,775
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 3,616
<EPS-BASIC> 0.16
<EPS-DILUTED> 0.13
</TABLE>
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