... %Compatible Laptop ModelThinkPad 240, 310, 360, 380, 385XD, 390, 390E, 385XD, 770ThinkPad 600, 600E, 600X,ThinkPad 500, 560, 570 ThinkPad A20, ... A20M, A21, A22, A22M, A30, A31, A31P ThinkPad R30, R31, R32, R33ThinkPad T20, T21, T22 ... , T23, T24, T30, T40, T41 ThinkPad X20, X21, X22, X23 ...