4TB Kioxia XG8 M. 2 PCIe Gen4x4 SSD. Very Good condition, 100% tested and guaranteed to work. Pulled from working Dell systems. 4 TB 3D NAND. PCIe Gen 4 x 4, NVMe 1.3. Sequential Read Performance =. Up to 7000 MB/s. Sequential Write Performance =. Up to 5800 MB/s. NVME SSDs are not compatible in all machines. Please double check your machine has a compatible NVME M. Message us if you have trouble checking or have additional questions. E the factory seal is not broken, or excess usage.