Lenovo SYSTEM BOARDS
5B21C15289
is compatible in the following Models:
Lenovo ThinkPad X Series laptops
ThinkPad X390 Yoga Laptop - 20NNCTO1WW
ThinkPad X390 Yoga Laptop - 20NNS0T900
ThinkPad X390 Yoga Laptop - 20NQ535H00
ThinkPad X390 Yoga Laptop - 20NQS02Y00
ThinkPad X390 Yoga Laptop - 20NQS05A00
ThinkPad X390 Yoga Laptop - 20NQS05G00
ThinkPad X390 Yoga Laptop - 20NQS09C00
ThinkPad X390 Yoga Laptop - 20NQS2N300
ThinkPad X390 Yoga Laptop - 20NQS4MH00