Lenovo ThinkPad T420s Hard Disk Drive Replacement - iFixit Repair Guide
NEW 2TB Msata Internal SSD SATA III 6Gb/s For Lenovo ThinkPad T420 T430 T440 | eBay
Adding an mSATA SSD to a Thinkpad T420
Lenovo Thinkpad T420 RAM SSD Hard Drive Optical CD DVD Drive Upgrade Repair Keyboard Replacement - YouTube
Lenovo Thinkpad T420S Laptop Hard Drive Replacement - LaptopHDS.com
Amazon.com: CMS 128GB mSATA 6GB/s Internal SSD Compatible with Lenovo ThinkPad T420 Series - C29 : Electronics
Amazon.com: Bfenown 2nd HDD SSD Hard Drive Caddy Tray Replacement for Lenovo Thinkpad T420 T430 T510 T520 T530 W510 W520 W530, Internal Laptop CD DVD ROM Optical Modular Bay to 2.5 Inch