<ARTICLE> 5
<LEGEND>
FINANCIAL DATA SCHEDULE FOR THE NINE MONTHS ENDED MARCH 31, 1999
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          JUN-30-1999
<PERIOD-START>                             JUL-01-1998
<PERIOD-END>                               MAR-31-1999
<CASH>                                           8,314
<SECURITIES>                                    16,977
<RECEIVABLES>                                   11,832
<ALLOWANCES>                                     2,499
<INVENTORY>                                      9,263
<CURRENT-ASSETS>                                44,869
<PP&E>                                          10,907
<DEPRECIATION>                                   4,864
<TOTAL-ASSETS>                                  53,149
<CURRENT-LIABILITIES>                            8,602
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        25,075
<OTHER-SE>                                      18,972
<TOTAL-LIABILITY-AND-EQUITY>                    53,149
<SALES>                                         43,811
<TOTAL-REVENUES>                                43,811
<CGS>                                           26,187
<TOTAL-COSTS>                                   37,176
<OTHER-EXPENSES>                                   203
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  7,471
<INCOME-TAX>                                     2,540
<INCOME-CONTINUING>                              4,931
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,931
<EPS-PRIMARY>                                     0.53
<EPS-DILUTED>                                     0.48