Lenovo SYSTEM BOARDS
5B21C15301
is compatible in the following Models:
Lenovo ThinkPad X Series laptops
ThinkPad X390 Yoga Laptop - 20NNCTO1WW
ThinkPad X390 Yoga Laptop - 20NQ535H00
ThinkPad X390 Yoga Laptop - 20NQA02VAU
ThinkPad X390 Yoga Laptop - 20NQS1C800
ThinkPad X390 Yoga Laptop - 20NQS1FV0Z
ThinkPad X390 Yoga Laptop - 20NQS25800
ThinkPad X390 Yoga Laptop - 20NQS35H00
ThinkPad X390 Yoga Laptop - 20NQS42400
ThinkPad X390 Yoga Laptop - 20NQS4UR00