Compatibility Information | Designed For | IBM ThinkPad A20m ¦ IBM ThinkPad A20p ¦ IBM ThinkPad A21e 2655 ¦ IBM ThinkPad A21m ¦ IBM ThinkPad A21p ¦ IBM ThinkPad A22e 2629, 2655, 2663, 2664 ¦ IBM ThinkPad A22m ¦ IBM ThinkPad A22p ¦ IBM ThinkPad R30 ¦ IBM ThinkPad R31 ¦ IBM ThinkPad R32 ¦ IBM ThinkPad R40 2681, 2682, 2683, 2722, 2723, 2724, 2896, 2897 ¦ IBM ThinkPad T20 ¦ IBM ThinkPad X20 ¦ Lenovo ThinkPad A20m ¦ Lenovo ThinkPad R31 ¦ Lenovo ThinkPad R32 ¦ Lenovo ThinkPad R40 2681, 2682, 2683, 2722, 2723, 2724 |