WD Ultrastar DC SN840 7.68TB NVMe U.2 SSD Second‑hand

• Western Digital dual-port NVMe 1.3c compliant controller: PCIe 3.1


• Western Digital 96-layer 3D TLC NAND


• 1 and 3 DW/D²

Performance: Up to RR = 780K IOPS, RW = 257K IOPS, maximum random 70/30 read/write = 503K IOPS

• MTBF up to 2.5 million hours (estimated)

Security options: Secure Erase (SE) and Instant Secure Erase (ISE)/TCG Ruby/FIPS 140-2 validation (coming soon)

Enterprise features include – 128 namespaces, atomic writes, multi-sector size, protection information, SGL, NVMe-MI 1.1