Exhibit 99.51 MBNA MASTER CREDIT CARD TRUST II SERIES 2000-H KEY PERFORMANCE FACTORS September 30, 2000 Expected B Maturity 8/16/10 Blended Coupon 6.9682% Excess Protection Level 3 Month Average 3.03% September, 2000 3.03% August, 2000 N/A July, 2000 N/A Cash Yield19.18% Investor Charge Offs 4.25% Base Rate11.90% Over 30 Day Delinquency 4.99% Seller's Interest 8.50% Total Payment Rate13.85% Total Principal Balance$54,293,652,263.17 Investor Participation Amount$700,000,000.00 Seller Participation Amount$4,612,451,744.68 For purposes of calculating the Base Rate and Excess Protection Level, a Coupon of 9.90% (38/360) was used. The Base Rate was calculated using a 38 day monthly period, 8/23/00 to 9/30/00.