Lenovo MEMORY
03X6401
is compatible in the following Models:
Lenovo ThinkPad T Series laptops
ThinkPad T420s - 4170CTO
ThinkPad T420s - 4173CTO
Lenovo ThinkPad W Series laptops
ThinkPad W520 - 4270CTO
ThinkPad W520 - 4282BJ7
ThinkPad W520 - 4282BW1
ThinkPad W520 - 4282C79
ThinkPad W520 - 4282CTO
ThinkPad W520 - 4282PS3
ThinkPad W520 - 4284GA4
Lenovo ThinkPad X Series laptops
ThinkPad X1 - 128623U
ThinkPad X1 - 12862KU
ThinkPad X1 - 1286CTO
ThinkPad X1 - 1286RU4
ThinkPad X1 - 129322M
ThinkPad X1 - 12932KM
ThinkPad X1 - 1293RQ1
ThinkPad X1 - 1293RR7
ThinkPad X1 - 1293RW1
ThinkPad X1 - 129422M
ThinkPad X1 - 1294A28