Model: 42T4434
Compatible Laptop SeriesThinkPad T-Series: T60, T61, T400, T410, T420, T430, T500, T510, T520, T530ThinkPad X-Series: X60, X61, X200, X201, X220, X230 (including Tablet models)ThinkPad R-Series: R60, R61, R400, R500ThinkPad W-Series: W500 (Note: Not compatible with larger W510/W520/W530 models which require 135W or 170W)ThinkPad L-Series: L410, L420, L430, L510, L520, L530ThinkPad Z-Series: Z60, Z61Lenovo 3000 Series: C100, C200, N100, N200, V100