<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM BLACK BOX
CORPORATION'S FORM 10-Q FOR THE FISCAL QUARTER ENDED SEPTEMBER 30, 1998 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAR-31-1999
<PERIOD-START>                             JUL-01-1998
<PERIOD-END>                               SEP-30-1998
<CASH>                                           3,444
<SECURITIES>                                         0
<RECEIVABLES>                                   54,274
<ALLOWANCES>                                     3,298
<INVENTORY>                                     34,318
<CURRENT-ASSETS>                               100,752
<PP&E>                                          32,890
<DEPRECIATION>                                  16,447
<TOTAL-ASSETS>                                 211,453
<CURRENT-LIABILITIES>                           36,446
<BONDS>                                         16,894
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            17
<OTHER-SE>                                     148,343
<TOTAL-LIABILITY-AND-EQUITY>                   211,453
<SALES>                                         79,130
<TOTAL-REVENUES>                                79,130
<CGS>                                           40,534
<TOTAL-COSTS>                                   40,534
<OTHER-EXPENSES>                                    11
<LOSS-PROVISION>                                   222
<INTEREST-EXPENSE>                                 100
<INCOME-PRETAX>                                 14,453
<INCOME-TAX>                                     5,689
<INCOME-CONTINUING>                              8,764
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     8,764
<EPS-PRIMARY>                                     0.51
<EPS-DILUTED>                                     0.49