Exhibit 99.40

MBNA MASTER CREDIT CARD TRUST II

SERIES 1999-L

KEY PERFORMANCE FACTORS
January 31, 2001



Expected B Maturity 10/16/06


Blended Coupon 6.2158%


Excess Protection Level
3 Month Average 4.43%
January, 2001 6.80%
December, 2000 0.14%
November, 2000 6.33%


Cash Yield19.75%


Investor Charge Offs 4.73%


Base Rate 8.22%


Over 30 Day Delinquency 4.88%


Seller's Interest11.58%


Total Payment Rate14.47%


Total Principal Balance$57,905,967,832.59


Investor Participation Amount$750,000,000.00


Seller Participation Amount$6,705,277,271.10