Bought my first Thinkpad X270 for ~170€ before the RAM and Battery upgrade. And it runs fedora like a charm! Worth every penny : r/thinkpad
Lenovo ThinkPad X270 Disassembly and RAM, SSD and HDD upgrade options
How to disassemble Lenovo ThinkPad X270 to upgrade SSD, HDD and RAM - Laptopmain.com
Lenovo ThinkPad X270 12.5" Laptop i5 6th Gen Select Drive/RAM Win 10 Pro (CR) | eBay
Lenovo ThinkPad X270 12.5" Business Laptop Computer Intel Core i5-6300U Up to 3.0GHz 8GB DDR4 RAM 256GB SSD Intel HD Graphics 520 Bluetooth 4.1 802.11ac WiFi USB-C HDMI Windows 10 Professional