Lenovo SYSTEM BOARDS
5B21J77648
is compatible in the following Models:
Lenovo ThinkPad L Series laptops
ThinkPad L13 Gen 4 (21FN, 21FQ) Laptop - 21FNCTO1WW
ThinkPad L13 Gen 4 (21FN, 21FQ) Laptop - 21FQS0N400
ThinkPad L13 Gen 4 (21FN, 21FQ) Laptop - 21FQS300DV