1x Seagate Terascale ST4000NC001 4TB 3.5-inch SATA 6Gbps enterprise HDD — new old stock, unopened in the sealed ESD bag, never installed. P/N 1FS168-002, FW CN03, also carries Dell DP/N 08JJHF, date code 15065 (~Nov 2014), Made in Thailand. 5900 RPM — stated plainly because many listings mislabel this model as 7200 RPM; it is not. Terascale (formerly Constellation CS) enterprise/cloud bulk-storage class, 24x7 rated. BARE DRIVE ONLY — no caddy/tray included. SATA interface: works in SATA backplanes and in SAS backplanes (SATA drives are accepted by SAS controllers). Never powered on, so no SMART data exists to offer; no manufacturer warranty remains.