<ARTICLE> 5
<MULTIPLIER> 1
<CURRENCY> U.S. DOLLARS
       
                                                  
<PERIOD-TYPE>                   9-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1997
<PERIOD-START>                             APR-01-1996             JAN-01-1997
<PERIOD-END>                               DEC-31-1996             JUN-30-1997
<EXCHANGE-RATE>                                      1                       1
<CASH>                                         172,764               3,833,945
<SECURITIES>                                         0                       0
<RECEIVABLES>                                1,740,383               5,117,207
<ALLOWANCES>                                         0                       0
<INVENTORY>                                  2,533,970               5,934,429
<CURRENT-ASSETS>                             4,520,274              15,072,123
<PP&E>                                       5,293,010               8,103,418
<DEPRECIATION>                               2,645,649               3,139,131
<TOTAL-ASSETS>                               7,304,865              20,208,148
<CURRENT-LIABILITIES>                        4,809,362              10,701,136
<BONDS>                                        542,259               1,035,274
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                 39,312,836              47,768,859
<COMMON>                                     1,376,715               1,398,231
<OTHER-SE>                                (38,736,307)            (40,695,352)
<TOTAL-LIABILITY-AND-EQUITY>                 7,304,865              20,208,148
<SALES>                                      2,050,245              12,582,457
<TOTAL-REVENUES>                             2,103,502              12,582,457
<CGS>                                        3,685,395               9,569,967
<TOTAL-COSTS>                                3,738,652               9,569,967
<OTHER-EXPENSES>                             5,550,356               5,687,775
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                             249,294                 337,733
<INCOME-PRETAX>                            (7,328,836)             (3,012,547)
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                        (7,328,836)             (3,012,547)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                               (7,328,836)             (3,012,547)
<EPS-PRIMARY>                                   (0.73)                  (0.30)
<EPS-DILUTED>                                        0                       0