M.2 PCI-e Gen 3x4 Solid Drive For SAMSUNG PM991a M.2 2230 SSD 512G NVMe PCIe - Walmart.com
Amazon.com: Timetec 256GB SSD NVMe PCIe Gen3x4 8Gb/s M.2 2280 3D NAND High Performance SLC Cache Read/Write Speed Up to 2,000/1,600 MB/s Internal Solid State Drive for PC Laptop and Desktop (256GB) :
TRANSCEND SSD 110S 512GB, M.2 2280, PCIe Gen3x4, 3D TLC, DRAM-less | eD system a.s.