2nd HDD or SSD Caddy for Lenovo ThinkPad T410s, T420s, T430s [TP-T420s] - $23.98 : NewmodeUS, Hard Drive Caddys for Notebooks
Lenovo ThinkPad T420S 14.0" Standard USED Laptop - Intel Core i5 2520M 2nd Gen 2.5 GHz 8GB SODIMM DDR3 SATA 2.5" 128GB SSD DVD-RW Windows 10 Pro 64-Bit - Walmart.com