Lenovo Thinkpad X270 upgraded to 32GB of RAM with a 250GB Samsung EVO 870 SSD : r/thinkpad
OFFTEK 2GB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad X250 (DDR3-12800) Laptop Memory at Amazon.com
Lenovo Thinkpad X250 12.5" Ultrabook Business Laptop Computer, Intel Dual-Core i5-5300U Up to 2.9GHz, 8GB RAM, 256GB SSD, WiFi, Bluetooth, USB 3.0, Windows 10 Professional (Reused) - Walmart.com
A-Tech 8GB Module for Lenovo ThinkPad X250 Laptop & Notebook Compatible DDR3/DDR3L PC3-14900 1866Mhz Memory Ram (ATMS350735B30845X1) at Amazon.com