Filed Under Rule 424 (b)(3) Registration Statement No. 333-18367 SUPPLEMENT NO. 21 TO PROSPECTUS DATED January 3, 1997 (AS SUPPLEMENTED January 10, 1997) AT&T CAPITAL CORPORATION Medium Term Notes, Series 4 Due Nine Months or More From Date of Issue. Issue Price: 100% (as a percent of principal amount) Fixed Rate Notes - ------------------- Interest Rate Per Annum............................... 6.41% Amount of Sale: $230,000,000.00 Maturity Date: 08/13/1999 Date of Sale: August 8, 1997 CUSIP Number: 00206HE42 Settlement Date: August 13, 1997 Interest Payment Dates: February 15 & August 15 Redemption: Check applicable sentence. X The Notes cannot be redeemed prior to maturity --- The Notes may be redeemed prior to maturity --- Redemption Date: Redemption Price: ----------- ------------ (as a percent of principal amount) Repayment: Check applicable sentence. X The Notes cannot be repaid prior to maturity. --- The Notes may be repaid prior to maturity. --- Repayment Date: Repayment Price: ------------ ------------ (as a percent of principal amount)