LENOVO THINKPAD PRO DOCK 40A1. for T440 T540 L440 L540 X240 X250 T450. Thinkpad models L440, L450, L460, L470, L540, L560, L570, P50s, P51S, T440, T440p, T440s, T450, T450s, T460, T460p, T460s,T470 ,T470P, T470S, T540p,T550 ,T560, T570, W550s, X240, X250,X260, X270.
