Lind Electronics DE2045-699. Output voltage: 20 V, Output current: 4.51 A, Compatibility: Dell Inspiron 1100, 2650, 4150, 5100, 8200, Latitude C640, C840, Precision M50, Smartstep 100n. Capacity: 90 W. Product color: Black. Package dimensions (W x D x H): 5 x 3 x 1.15"