Lenovo Thinkpad T420 T520 500GB 2.5" SATA Hard Drive with Caddy and Rubber Rails | eBay
ThinkPad T420 Hard Drive Replacement - iFixit Repair Guide
Lenovo ThinkPad T420 14'' PC Laptop Intel i5 Dual Core 2.5GHz 8GB RAM 750GB HDD Windows 10 Professional (Used) - Walmart.com
Lenovo ThinkPad T420s Hard Disk Drive Replacement - iFixit Repair Guide
T420, 8GB RAM, 500GB HDD & 120GB SDD (swapped out the cd drive with a hard disk caddy)...oh and my reddit avatar laser engraved on it : r/thinkpad
ThinkPad T420 Hard Drive Replacement - iFixit Repair Guide
Refurbished: Lenovo Laptop ThinkPad Intel Core i7 2nd Gen 2620M (2.70GHz) 8GB Memory 500GB HDD Intel HD Graphics 3000 14.0" Windows 10 Pro T420 - Newegg.com
LENOVO THINKPAD T420 HARD DRIVE REPLACEMENT - YouTube
HardDriveGeeks 1TB 2.5" Hard Drive for Lenovo/IBM Thinkpad T520-4241 T520-4242 T520-4243 T420-4177 T420-4178 T420-4180 T420-4236 T410-2516
Amazon.co.jp: Nimitz 9.5 mm Thick SATA Optical Drive with Lenovo ThinkPad T430s T420s T410 T400, Optical Drive, and HDD or SSD to replace for Kit : Computers
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: Buy Online
ThinkPad T420 Hard Drive Replacement - iFixit Repair Guide