... .Input:100-240v6.Output:16v3.5a compatible with following modelsFor ThinkPad 240, 310, 360, 380, 385XD, 390, 390E, 385XD, 770, ... For ThinkPad 600, 600E, 600X, For Thinkpad 500, 560, 570For ThinkPad A20, A20M, A21, A22, A22M, A30, ... A31, A31PFor ThinkPad R30, R31, R32, R33, ThinkPad T20, T21, ...