HP 821683-001 - 256GB solid-state drive (SSD) - M.2 PCIe-3x4 Non-Volatile Memory Express (NVMe) interface, 2.5-inch form factor
P300 PCIe m.2 Internal SSD | Patriot Memory
Amazon.com: PIONEER 256GB NVMe SSD PCIe M.2 2280 Gen 3x4 TLC Internal High Speed Read/Write up to 3100/1000MB/s Solid State Drive, 300 TBW, PC Laptop Compatible (APS-SE20G-256) : Electronics