1TB M.2 2230 NVMe PCI Express 3.0 x2 SSD (Solid State Drive)-30mm Half Size, Brand : Samsung PM991 MZ-VLQ1T00, KLFGGAR4AA-K0T0 For Microsoft Surface Pro X, Microsoft Surface Pro 7+, Microsoft Surface Laptop
DockCase Pocket M.2 SSD enclosure hands-on
NEW WD 2TB M.2 2230 SSD NVMe PCIe4x4 PC SN740 For Microsoft Surface Pro X 7+ 9 | eBay
Sabrent's upcoming M.2 2230 SSD is perfect for Steam Deck | Windows Central
Sabrent Rocket Gen 4 2230 1TB M.2 SSD Review - Is this the Smallest and Fastest Storage Combination in the World? | The SSD Review
Amazon.com: Western Digital 1TB SSD PC SN530 M.2 2230 PCIe Gen3 x4 NVMe 1024GB SDBPTPZ-1T00 : Electronics
WD Black SN770M M.2 2230 SSD Now Available - Best for Handheld Gaming Devices
NEW 2230 SSD 1TB NVMe PCIe for Microsoft Surface Pro X 7+ 8 Surface Laptop 3 & 4 | eBay
Amazon.com: ADATA 1TB 2230 SSD, Legend 820, NVMe PCIe Gen4 x 4 M.2, R/W Speed up to 5,000/4,500MB/s, Internal Solid State Drive Great for Steam Deck, Microsoft Surface and Gaming Consoles. :
Steam Deck has M.2 2230 SSD slot, but Valve does not recommend upgrading it - VideoCardz.com
This 2TB Micron M.2 2230 SSD is perfect for your Steam Deck, and it's £150 from Amazon | Eurogamer.net