Adventures in buying & upgrading a Thinkpad X220 Tablet
512 GB SSD Hard Drive 2.5 Inch Suitable for Lenovo ThinkPad X220 Tablet, Alternative Replacement Part, SATA3 Solid State Drive: Amazon.de: Computer & Accessories
Installing a mSATA SSD into my ThinkPad X220 – Ioannis Karagiorgos blog
Lenovo ThinkPad X220 SSD Upgrade - YouTube
Lenovo ThinkPad X220 - How to upgrade your hard drive to SSD - YouTube
Upgrade Options for Lenovo ThinkPad X220 Tablet - Drive Solutions