<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from financial
statements as of September 30, 2000 and is qualified in its entirety by
reference to such financial statements.

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               SEP-30-2000
<CASH>                                          16,331
<SECURITIES>                                    11,963
<RECEIVABLES>                                   14,332
<ALLOWANCES>                                       310
<INVENTORY>                                      8,750
<CURRENT-ASSETS>                                53,453
<PP&E>                                           7,252
<DEPRECIATION>                                   5,173
<TOTAL-ASSETS>                                  57,283
<CURRENT-LIABILITIES>                            7,346
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           207
<OTHER-SE>                                      49,471
<TOTAL-LIABILITY-AND-EQUITY>                    57,283
<SALES>                                         38,485
<TOTAL-REVENUES>                                38,485
<CGS>                                           13,759
<TOTAL-COSTS>                                   13,759
<OTHER-EXPENSES>                                19,389
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  6,749
<INCOME-TAX>                                     2,531
<INCOME-CONTINUING>                              4,218
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,218
<EPS-BASIC>                                       0.22
<EPS-DILUTED>                                     0.21