Lenovo SYSTEM BOARDS
5B21J77117
is compatible in the following Models:
Lenovo ThinkPad L Series laptops
ThinkPad L15 Gen 3 (21C3, 21C4) Laptops - 21C3CTO1WW
ThinkPad L15 Gen 3 (21C3, 21C4) Laptops - 21C4S1RJ17
ThinkPad L15 Gen 3 (21C3, 21C4) Laptops - 21C4S3LH15
ThinkPad L15 Gen 3 (21C3, 21C4) Laptops - 21C4S5SX00