1.US version computer keyboard for Lenovo Thinkpad E540 E545 E531 T540 T540P W540 W541 W550s. 2.Replace your broken or unworkable part with a new one. 3.Each item has been checked and in good condition before shipping. 4.Highly recommend professional installation. We will not be responsible for any damages to your device that you may cause during the changing of replacement parts.
