Lenovo ThinkPad T14 Gen 2 T15 Gen 2 T14 Gen 2 Mainboard Mainboard 5B21J77501
5B21J77501, 5B21M82749. Motherboard Mainboard Logicboard Board. This part is a genuine part direct from Lenovo so you can be sure you are receiving the highest quality product available. Genuine Lenovo.