Lenovo SYSTEM BOARDS
5B21L33555
is compatible in the following Models:
Lenovo ThinkPad L Series laptops
ThinkPad L15 Gen 4 (21H3, 21H4) Laptop - 21H3001
ThinkPad L15 Gen 4 (21H3, 21H4) Laptop - 21H3CTO1WW
ThinkPad L15 Gen 4 (21H3, 21H4) Laptop - 21H4S44Q00
ThinkPad L15 Gen 4 (21H3, 21H4) Laptop - 21H4SAVG00
ThinkPad L15 Gen 4 (21H3, 21H4) Laptop - 21H4SC1H00
ThinkPad L15 Gen 4 (21H3, 21H4) Laptop - 21H4SDSC00