Exhibit 99.21

MBNA MASTER CREDIT CARD TRUST II SERIES 1996-K

KEY PERFORMANCE FACTORS
July 31, 1997



Expected B Maturity 11/17/03


Blended Coupon 5.8608%



Excess Protection Level
3 Month Average 4.64%
July, 1997 4.55%
June, 1997 4.86%
May, 1997 4.52%


Cash Yield 17.53%


Investor Charge Offs 4.92%


Base Rate 8.06%


Over 35 Day Delinquency 4.47%


Seller's Interest 18.18%


Total Payment Rate 14.22%


Total Principal Balance $30,179,392,749.44


Investor Participation Amount $1,000,000,000.00


Seller Participation Amount $5,486,155,230.95