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Can I save money by buying laptop without SSD and adding it? I have the same question for other easily upgraded components like RAM etc. - Quora
CMS 8GB (1X8GB) DDR3 12800 1600MHz Non ECC SODIMM Memory Ram Upgrade Compatible with Asus/Asmobile® X Series Notebook X540LA, X554LJ-XX1153D - A8 at Amazon.com
8GB Memory for ASUS X456UB X456UF X540LA X540LJ X550CL X550DP PC3L-12800 RAM | eBay
A-Tech 8GB Module for ASUS X540LA Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS393746B12351X1) at Amazon.com
RAM upgrade help on Asus X540LA-XX972T laptop - Laptops and Pre-Built Systems - Linus Tech Tips
ASUS X540U Laptop Inside Beautiful View | How to Upgrade Ram in ASUS X540U | LT HUB - YouTube
Asus VivoBook 15 F515JA-AH31: Quick RAM Upgrade Tutorial | 9to5gadgets