ASUS X551M 15.6" Intel Celeron N2840 2.16GHz 4GB RAM No HDD Boots to BIOS | eBay
Genuine New X551MA Motherboard w/ N2815 CPU 60NB0480 MB1500 / 90NB0480 R00020 for ASUS X551MA laptop|Laptop Motherboard| - AliExpress
Amazon.com: ASUS X551 15.6-inch Laptop (Intel Celeron 2.16GHz Processor, 4GB RAM, 500GB HDD, Windows 8.1 includes Windows 10 upgrade), Black : Electronics
Asus X551MA Motherboard – Empower Laptop
asus x551M Laptop disassembly remove motherboard/hard drive/ram etc... - YouTube
RAM memory for Asus X551MA
ASUS X551MA 15.6-Inch Laptop Review
parts-quick 8GB Memory for ASUS X Series Notebook X551MA DDR3L 1600MHz PC3L-12800 SODIMM Compatible RAM at Amazon.com
OFFTEK 4GB Replacement Memory RAM Upgrade for Asus X551MA (DDR3-12800) Laptop Memory at Amazon.com
8GB Memory for ASUS X Series Notebook X551MA DDR3L 1600MHz PC3L-12800 SODIMM RAM (MemoryMasters) - Newegg.com