A-Tech 16GB Module for Lenovo ThinkPad X270 Laptop & Notebook Compatible DDR4 2400Mhz Memory Ram (ATMS350784A25831X1) at Amazon.com
Amazon.com: Lenovo Thinkpad x270 12.5" HD IPS Business Laptop, Intel Dual-Core i5-7300U up to 3.5GHz 8GB DDR4 256GB SSD USB Type-C Bluetooth 4.0 802.11ac Fingerprint Reader Win 10 Pro (Renewed) : Electronics
Lenovo ThinkPad X270 Disassembly and RAM, SSD and HDD upgrade options
Amazon.com: Lenovo ThinkPad X270 12.5inch Business Laptop, Intel Core i7-6600U X2 2.4GHz, 8GB RAM, 256GB SSD, Windows 10 Pro, Black (Renewed) : Electronics
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