Part no: 45N5887. No AC Adapter included. It's compatible with various ThinkPad models including the L412, L420, L430, L512, L520, L530, T400s, T410, T410i, T410s, T410si, T420, T420s, T430, T510, T510i, T520 (Dual Core), T520i (Dual Core), T530 (Dual Core), T530i (Dual Core), X220, X220i, X230, and X230i.
eBay