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
240GB 2.5" SSD Solid State Drive for Lenovo ThinkPad Edge E550,E550c,E555,E560,E560p,E565,E570,E570c,E575,E580,L330,S430 : Electronics