Lenovo Part
04X4974
is compatible in the following Models:
Lenovo ThinkPad Edge laptops
ThinkPad Edge E440 - 20C5CT01WW
ThinkPad Edge E440 - 20C5CTO1WW
ThinkPad Edge E431 - 62775AU
ThinkPad Edge E431 - 6277CTO
ThinkPad Edge E431 - 6886CTO