Lenovo KEYBOARDS INTERNAL
42T3168
is compatible in the following Models:
Lenovo ThinkPad R Series laptops
ThinkPad R500 - 2732CTO
ThinkPad R400 - 7439CTO
Lenovo ThinkPad T Series laptops
ThinkPad T500 - 2089WAU
ThinkPad T400 - 6474CTO
ThinkPad T400 - 7417CTO
Lenovo ThinkPad W Series laptops
ThinkPad W700 - 2757CTO