Semoic 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 Adapter to 2.5 Inch 12.7MM: Amazon.co.uk:
Tutorial: How to Upgrade T410/T420/400 Thinkpad Laptop to 8GB - YouTube
SSD Upgrade for Lenovo ThinkPad T420 256GB/512GB/1TB/2TB | eBay
SSD Upgrade for Lenovo ThinkPad T420 256GB/512GB/1TB/2TB | eBay
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