Lenovo SYSTEM BOARDS
5B20S42321
is compatible in the following Models:
Lenovo L Series laptops (ideapad)
IdeaPad L340-17IRH Gaming Laptop - 81LL0005US
IdeaPad L340-17IRH Gaming Laptop - 81LL0011AU
IdeaPad L340-17IRH Gaming Laptop - 81LL00AGUS
IdeaPad L340-17IRH Gaming Laptop - 81LLCTO1WW