The SanDisk Optimus 5100 M.2 2280 500GB NVMe PCIe 4.0 x4 6600MB/s SDSP51500GAN-000E0 is a high-performance internal SSD designed for Windows 10+ operating systems. With a sleek black form factor and a storage capacity of 500GB, this SSD offers read speeds of up to 6,600MB/s and write speeds of up to 5,600MB/s. Compatible with PCIe 4.0 x4 interface, this NVMe SSD delivers fast and efficient storage solution for your computing needs. Built by the trusted brand SanDisk and manufactured in China, this SSD is a reliable choice for solid-state drive requirements.