Lenovo ANTENNA
04W0604
is compatible in the following Models:
Lenovo ThinkPad X Series Tablet laptops
ThinkPad X220 Tablet - 4294CTO
ThinkPad X220 Tablet - 4294RT7
ThinkPad X220 Tablet - 42982JM
ThinkPad X220 Tablet - 4298CTO
ThinkPad X220 Tablet - 429927M