OFFTEK 2GB Replacement Memory RAM Upgrade for Asus Zenbook Prime UX31A (DDR3-12800) Laptop Memory
Amazon.com: Asus UX31E Laptop Motherboard w/ i5-2467 2.3Ghz CPU w/ 4GB RAM, 60-N8NMB4G00-A03, 69N0LYM1HA03 : Electronics
Ux31a/a2 Original Mainboard For Zenbook Ux31a Ua31a2 With I5-3317u I7-3537u 4gb-ram Laptop Motherboard 100% Test Working Well - Laptop Motherboard - AliExpress