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

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                          15,417
<SECURITIES>                                    14,948
<RECEIVABLES>                                   12,913
<ALLOWANCES>                                       304
<INVENTORY>                                      6,843
<CURRENT-ASSETS>                                50,451
<PP&E>                                           7,080
<DEPRECIATION>                                   4,908
<TOTAL-ASSETS>                                  56,543
<CURRENT-LIABILITIES>                            6,491
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           207
<OTHER-SE>                                      49,589
<TOTAL-LIABILITY-AND-EQUITY>                    56,543
<SALES>                                         24,370
<TOTAL-REVENUES>                                24,370
<CGS>                                            8,941
<TOTAL-COSTS>                                    8,941
<OTHER-EXPENSES>                                12,805
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  3,525
<INCOME-TAX>                                     1,332
<INCOME-CONTINUING>                              2,203
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     2,203
<EPS-BASIC>                                       0.11
<EPS-DILUTED>                                     0.11