2230 SSD in T480 WWAN slot works great with 22x30mm to 22x42mm Adapter : r/thinkpad
NEW Lenovo Thinkpad T470 T480 NVMe PCIe M.2 SSD Upgrade Adapter Caddy Cable US | eBay
Amazon.com: NVME M.2 PCIe SSD to 2.5 inch Hard Drive Caddy Bracket Tray with SATA HDD Cable Replacement for Lenovo ThinkPad T470 T480 1AX994 : Electronics
Add Additional M.2 2242 SSD to T480 : r/thinkpad
Refurbished Lenovo T480 on Sale | LaptopCloseout.com
Amazon.com: New NVMe PCIe M.2 SSD Upgrade Adapter Board Bracket Cable Replacement for Thinkpad T470 T480 1AX994 : Electronics