Exhibit 99.10 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-B KEY PERFORMANCE FACTORS June 30, 2000 Expected B Maturity 4/17/06 Blended Coupon 6.9565% Excess Protection Level 3 Month Average 5.24% June, 2000 4.77% May, 2000 5.57% April, 2000 5.37% Cash Yield 18.75% Investor Charge Offs 4.56% Base Rate 9.42% Over 30 Day Delinquency 4.60% Seller's Interest 12.05% Total Payment Rate 14.03% Total Principal Balance $54,839,173,315.51 Investor Participation Amount $500,000,000.00 Seller Participation Amount $6,607,972,797.02