Lenovo SYSTEM BOARDS 5B20G45454 is compatible in the following Models:

Lenovo Z Series laptops

Z50-70 Laptop (Lenovo) - 59432713
Z50-70 Laptop (Lenovo) - 59436278
Z50-70 Laptop (Lenovo) - 59441701
Z50-70 Laptop (Lenovo) - 80E759441701