Opening the Lenovo T470s, again - 2nd M.2 SSD possible? - YouTube
Deal4GO SSD SATA Hard Disk Drive Cable Connector with HDD Caddy Bracket Tray for Lenovo Thinkpad T470 T480 T470P A475 A485 00UR495 DC02C009L00 : Electronics
T470p second SSD adventure : r/thinkpad
1TB SSDNow M.2 2280 SATA 6GB Compatible with Lenovo ThinkPad T470p by CMS D68 - Computer Memory Solutions
Original For Thinkpad T460p T470p Sata To M.2 Nvme Ssd Hard Drive Caddy Board Dl470 Ns-b021 Test Good Free Shipping - Fans & Cooling - AliExpress