Lenovo thinkpad t61 2nd HDD SSD Hard Drive Caddy Adapter for Laptop
CMS 256GB SATA 6GB/s 2.5" Internal SSD Compatible with Lenovo ThinkPad T440P, T440s, T560, T61 - C91 at Amazon.com
Lenovo Thinkpad T61 Laptop Hard Drive Replacement - LaptopHDS.com
I “think” you enjoy this… T61 (256 Gb SSD Debian 10, RAM 4 Gb) and E14 2021 (upgrade with RAM 16 Gb, 1 Tb M.2 for Windows 11 and 256 Gb SSD for Debian 11, all Crucial) : r/thinkpad