Exhibit 99.41 MBNA MASTER CREDIT CARD TRUST II SERIES 1999-H KEY PERFORMANCE FACTORS June 30, 2000 Expected B Maturity 4/15/2004 Blended Coupon 6.5834% Excess Protection Level 3 Month Average 5.45% June, 2000 5.26% May, 2000 5.88% April, 2000 5.20% Cash Yield18.81% Investor Charge Offs 4.56% Base Rate 8.99% Over 30 Day Delinquency 4.60% Seller's Interest12.05% Total Payment Rate14.03% Total Principal Balance$54,839,173,315.51 Investor Participation Amount$1,000,000,000.00 Seller Participation Amount$6,607,972,797.02