Exhibit 99.50 MBNA MASTER CREDIT CARD TRUST II SERIES 2000-I KEY PERFORMANCE FACTORS February 28, 2001 Expected B Maturity 08/15/2005 Blended Coupon 6.9750% Excess Protection Level 3 Month Average 4.79% February, 2001 7.23% January, 2001 6.80% December, 2000 0.34% Cash Yield19.48% Investor Charge Offs 4.62% Base Rate 7.63% Over 30 Day Delinquency 5.13% Seller's Interest 8.26% Total Payment Rate13.44% Total Principal Balance$57,174,868,500.05 Investor Participation Amount$1,000,000,000.00 Seller Participation Amount$4,724,177,938.56