SPATIUM M461 PCIe 4.0 NVMe M.2 - 1TB PHISON E21T M.2 2280 PCIe Gen4x4, NVMe 1.4 PCIe Gen4 / Gen3 / Gen2 / Gen1 SEQUENTIAL READ UP TO (MB/S) 5000 SEQUENTIAL WRITE UP TO (MB/S) 3200 LIMITED WARRANTY 5 Years, or the coverage for the maximum TBW as stated, whichever comes first.