Crucial T700 4TB PCIe Gen5 NVMe M.2 Internal Solid State Drive with Heatsink - PCIe Gen 5.0 x4, NVMe 2.0 - 232-layer TLC NAND - 12400 MB/s Sequential Read - 11800 MB/s Sequential Write - 2400TB TBW (CT4000T700SSD5)