Lenovo SYSTEM BOARDS
5B21L45518
is compatible in the following Models:
Lenovo Yoga Series laptops (IdeaPad)
Yoga Book 9 13IRU8 - 82YQ0021UK
Yoga Book 9 13IRU8 - 82YQ0029AU
Yoga Book 9 13IRU8 - 82YQCT01WW
Yoga Book 9 13IRU8 - 82YQCTO1WW