Exhibit 99.50 MBNA MASTER CREDIT CARD TRUST II SERIES 2000-I KEY PERFORMANCE FACTORS December 31, 2000 Expected B Maturity 08/15/2005 Blended Coupon 6.9750% Excess Protection Level 3 Month Average 3.95% December, 2000 0.34% November, 2000 6.44% October, 2000 5.07% Cash Yield19.79% Investor Charge Offs10.15% Base Rate 9.31% Over 30 Day Delinquency 4.72% Seller's Interest10.47% Total Payment Rate13.35% Total Principal Balance$57,190,978,436.47 Investor Participation Amount$1,000,000,000.00 Seller Participation Amount$5,990,287,874.98