Exhibit 99.48 MBNA MASTER CREDIT CARD TRUST II SERIES 2000-D KEY PERFORMANCE FACTORS July 31, 2000 Expected B Maturity 4/16/2007 Blended Coupon 6.9615% Excess Protection Level 3 Month Average 4.53% July, 2000 5.90% June, 2000 3.15% May, 2000 N/A Cash Yield19.22% Investor Charge Offs 4.57% Base Rate 8.75% Over 30 Day Delinquency 4.81% Seller's Interest11.87% Total Payment Rate14.13% Total Principal Balance$55,010,319,976.67 Investor Participation Amount$850,000,000.00 Seller Participation Amount$6,529,119,458.18