How to Install a mSATA SSD drive in a laptop (X220) - YouTube
Dima on Twitter: "Alright, AX200 is installed on ThinkPad X220. To make it possible you want to: 1. Buy an M.2 NGFF to mPCIe adapter 2. Buy MFH4 (female) to IPEX/UFL (male)
Upgrading my ThinkPad X230 from HDD to SSD (with benchmarks) – Ioannis Karagiorgos blog
Installing a mSATA SSD into my ThinkPad X220 – Ioannis Karagiorgos blog