Exhibit 99.4 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-D KEY PERFORMANCE FACTORS March 31, 1997 Expected B Maturity 11/17/97 Blended Coupon 5.86945% Excess Protection Level 3 Month Average 5.04% March, 1997 5.66% February, 1997 5.45% January, 1997 4.01% Cash Yield 17.84% Investor Charge Offs 4.50% Base Rate 7.67% Over 35 Day Delinquency 4.55% Seller's Interest 12.97% Total Payment Rate 12.55% Total Principal Balance $ 24,979,151,243.99 Investor Participation Amount $ 1,000,000,000.00 Seller Participation Amount $ 3,239,523,725.50