NM-B891 5B21C15253 Laptop Motherboard for T490s / X390 — CPU I78565U, i58265U | 8G | JP | dTPM

Replacement NM-B891 motherboard, part number 5B21C15253, for T490s and X390 laptops. This board comes with CPU options I78565U and i58265U, 8G memory, JP configuration and onboard dTPM security. Perfect as a direct swap for systems requiring the 5B21C15253 mainboard.You may also like For Working CPU Cooling Fan — Fits F750/F755 Cooler, DC5V 400mA, G61C0000F110 T-137C.