Amazon.com: Genuine Parts for Lenovo ThinkPad T570 P51s HDD SSD M.2 Adapter Caddy and Cable with Bracket (This Will not fit T580 P52s) 01AY476 01ER035 : Electronics
Adding storage to the T570 : r/thinkpad
New SSD HDD NVMe M.2 Adapter Caddy & cable For Lenovo ThinkPad T570 T580 P51S P52S PCIE NVM - AliExpress
Used Lenovo ThinkPad T570 15.6" Laptop Core i7 8GB 256GB SSD M.2 Integrated Graphics Win 10 Pro 1 Yr Wty B v.WCA - Walmart.com