Amazon.com: Lenovo Newest ThinkPad X270, 12.5" HD, i7-6600U with vPro™ (2.60GHz, up to 3.40GHz with Turbo Boost, 2 Cores, 4MB Cache), 8GB RAM, 256GB SSD, Win10 Pro. : Electronics
Amazon.com: Renewed Lenovo ThinkPad X270 12.5" Business Laptop Computer i5-6300U 8GB DDR4 RAM 256GB SSD Intel HD Graphics Windows 10 Professional With 90 Days Warranty : Electronics
32GB RAM for Thinkpad X270 (and other pimp-ups) – Janne's Tech Blog
parts-quick 16GB Memory for Lenovo ThinkPad X270 DDR4 2133MHz SODIMM RAM at Amazon.com
A-Tech 16GB Module for Lenovo ThinkPad X270 Laptop & Notebook Compatible DDR4 2666Mhz Memory Ram (ATMS350784A25832X1) at Amazon.com