Compatibility Information | Designed For | ThinkPad S30 2639 ¦ IBM ThinkPad 390X 2626 ¦ IBM ThinkPad 570 2644 ¦ IBM ThinkPad 570E 2643, 2644 ¦ IBM ThinkPad 600X 2645, 2646 ¦ IBM ThinkPad A20m 2633 ¦ IBM ThinkPad A20p 2629 ¦ IBM ThinkPad A21e 2628 ¦ IBM ThinkPad A21p 2629 ¦ IBM ThinkPad A22e 2655, 2663 ¦ IBM ThinkPad A22m 2628 ¦ IBM ThinkPad i Series 1200 1161 ¦ IBM ThinkPad i Series 1300 1171 ¦ IBM ThinkPad T20 2648 ¦ IBM ThinkPad T21 ¦ IBM ThinkPad T22 2647 ¦ IBM ThinkPad X20 2660, 2661, 2662 ¦ IBM ThinkPad X21 2662 ¦ Lenovo ThinkPad A20m |