Lenovo SYSTEM BOARDS
04X0850
is compatible in the following Models:
Lenovo ThinkPad X Series laptops
ThinkPad X1 Carbon 1st Gen (34xx) Laptop - 34431C7
ThinkPad X1 Carbon 1st Gen (34xx) Laptop - 3443CTO
ThinkPad X1 Carbon 1st Gen (34xx) Laptop - 34485D7
ThinkPad X1 Carbon 1st Gen (34xx) Laptop - 34486V3
ThinkPad X1 Carbon 1st Gen (34xx) Laptop - 3448CTO