NEW SAMSUNG PM991 PCIe NVMe SSD 1TB 1024GB M.2 2230 For Microsoft Surface Pro X | eBay
Best Buy: SanDisk Ultra 1TB PCIe Gen 3 x4 NVMe Internal Solid State Drive SDSSDH3N-1T00-G25
Amazon.com: SAMSUNG 970 EVO Plus SSD 1TB, M.2 NVMe Interface Internal Solid State Hard Drive with V-NAND Technology for Gaming, Graphic Design, MZ-V7S1T0B/AM : Electronics
WD SN530 m.2 2230 SSD 1TB NVMe PCIe for Microsoft Surface Pro X Surface Laptop 3 | eBay