Dell 4TB SAS 7.2k 3.5" 6G Hard Drive - ST4000NM0063 - In Caddy - Silver
Interface: SAS 6 Gb/s. MTBF: 1.4–2.0 million hours (enterprise reliability). Item is just the hard drive. Data Transfer Rate: Up to 600 MB/s external transfer rate. Spindle Speed: 7,200 RPM. Colour: Silver.