Lenovo ThinkPad X390 T490s Motherboard Mainboard UMA intelI78665U 32G 01HX952
5B21C98843, 01HX952. Motherboard Mainboard Logicboard Board. WIN i7-8665U 32G 9560 AMT yTPM2. This part is a genuine part direct from Lenovo so you can be sure you are receiving the highest quality product available.