2nd HDD SSD Hard Drive Caddy for Lenovo Thinkpad T420 T430 T510 T520 T530 W510 W520 W530, Laptop CD/DVD-ROM Optical Modular Bay - AliExpress
Finally added mSATA SSD to my T420 and now have 3 drives booting multiple operating systems, what a joy 😁 : r/thinkpad
Lenovo ThinkPad T420 14.0 Laptop, Intel Core I7-2620M up to 3.4Ghz, 8G DDR3, 240G SSD, DVDRW, DP, W10P64-Multi Languages Support (EN/ES/FR), 1 year warranty Used Grade A - Walmart.com
Lenovo ThinkPad T420 i5-2540M 2.6GHz 8GB/120GB SSD Win 7 pro. Ready to Use | eBay
Lenovo ThinkPad T420 14.0 Laptop, Intel Core I7-2620M up to 3.4Ghz, 8G DDR3, 240G SSD, DVDRW, DP, W10P64-Multi Languages Support (EN/ES/FR), 1 year warranty Used Grade A - Walmart.com
Lenovo ThinkPad T420 Laptop 14" HD Intel i5 2.50GHZ 4GB 240GB SSD Windows 8.1 | eBay
Refurbished: Lenovo ThinkPad T420 14" LED Notebook Intel Dual Core i7-2640M 2.80GHz 8 GB DDR3 RAM 128GB SSD DVD-RW WiFi Bluetooth Webcam Windows 7 Professional 64-bit - Newegg.com
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
NEW 2nd SATA SSD Hard Drive HDD Caddy for LENOVO Thinkpad T420 T430 T510 T520 T530 W510 W520 W530 W700 W701 R400 R500
ThinkPad T420 Hard Drive Replacement - iFixit Repair Guide
Can I use any of these on my Lenovo Thinkpad T420? : r/thinkpad
Amazon.com: CMS 128GB mSATA 6GB/s Internal SSD Compatible with Lenovo ThinkPad T420 Series - C29 : Electronics