Part
63Y1891
is utilised in the following Models:
4313CTO
ThinkPad T Series laptops ThinkPad T510 4313CTO
4318CTO
ThinkPad W Series laptops ThinkPad W510 4318CTO
4349CTO
ThinkPad T Series laptops ThinkPad T510 4349CTO
4389CTO
ThinkPad W Series laptops ThinkPad W510 4389CTO