KXG50ZNV256G Toshiba XG5 256GB TLC PCIe NVMe M. 2 Solid State Drive. Solid State DriveMarketing Information. XG5 series SSDs feature Toshiba’s latest 64-layer, 3D TLC (3-bit-per-cell) flash memory BiCS FLAS. This new line of NVMeT based client SSDs deliver high performance up to 3000 MB/s of sequential read and 2100…