I bought a SN520 WD 2242 NVME SSD and it runs just fine in the wan port of my new AMD T14s, plus I can even boot from it. : r/thinkpad
Western Digital SN520 SDAPNUW-256G-1006 256GB Gen3 M.2 NVME SSD
Amazon.com: Western Digital SN520 SSD 512GB M.2 2230 PCIe : Electronics
Western Digital PC SN520 NVMe 256GB 512GB M.2 2242 PCIe3 x 2 For Lenovo Laptop | eBay
Western Digital SN520 256GB M.2 2280 NVMe SSD Drive – Electronics Outlet: Open Box New & NEW Electronics, TV's, Computers, Tablets, Printers and Networking Gear
Western Digital PC SN520 256 GB Solid State Drive - M.2 2280 Internal — Network Hardwares
Can confirm the Western Digital SN520 256GB NVMe drive is compatible with the Deck : r/SteamDeck
WDC PC SN520 SDAPMUW-256G SSD Benchmarks - NotebookCheck.net Tech