... .Input:100-240v6.Output:16v3.5a compatible with following modelsFor ThinkPad 240, 310, 360, 380, 385XD, 390, 390E, 385XD, ... , 600X, For Thinkpad 500, 560, 570For ThinkPad A20, A20M, A21, A22, A22M, A30, A31, A31PFor ThinkPad R30, R31, R32, R33, ThinkPad T20, T21, T22 ... , T23, T24, T30, T40, T41For ThinkPad X20, X21, X22, X23, ...