Exhibit 99.21

MBNA MASTER CREDIT CARD TRUST II SERIES 1996-K

KEY PERFORMANCE FACTORS
April 30, 1997



Expected B Maturity 11/17/03


Blended Coupon 5.8693%



Excess Protection Level
3 Month Average 5.03%
April, 1997 3.81%
March, 1997 5.87%
February, 1997 5.41%


Cash Yield 16.23%


Investor Charge Offs 4.55%


Base Rate 7.87%


Over 35 Day Delinquency 4.27%


Seller's Interest 20.02%


Total Payment Rate 12.21%


Total Principal Balance $27,182,850,184.68


Investor Participation Amount $1,000,000,000.00


Seller Participation Amount $5,443,222,666.19