I bought a 2,5” SSD for my thinkpad e595 and when I've opened it, theres something in the ssd slot. I bought it just with M.2 memory, so I don't know what
ThinkPad T440p SSD Upgrade with Transcend MTS400 256GB 2242 M.2 SSD – Mostly About Computers
ThinkPad T440p SSD Upgrade with Transcend MTS400 256GB 2242 M.2 SSD – Mostly About Computers
Lenovo ThinkPad T420 HDD/SSD caddy SATA-3 Opticaddy beépítőkeret előlappal + külső USB ház a DVD íróhoz - eMAG.hu
MSata SSD in Lenovo T420 with 12gb Ram and two more hard drives - YouTube