Exhibit 99.50 MBNA MASTER CREDIT CARD TRUST II SERIES 2000-I KEY PERFORMANCE FACTORS March 31, 2001 Expected B Maturity 08/15/2005 Blended Coupon 6.9750% Excess Protection Level 3 Month Average 7.32% March, 2001 7.92% February, 2001 7.23% January, 2001 6.80% Cash Yield20.67% Investor Charge Offs 4.83% Base Rate 7.91% Over 30 Day Delinquency 4.90% Seller's Interest 7.37% Total Payment Rate14.60% Total Principal Balance$56,622,749,044.91 Investor Participation Amount$1,000,000,000.00 Seller Participation Amount$4,172,058,483.42