Western Digital Purple internal hard drive 4 TB 5400 RPM 128 MB 3.5 Serial ATA III

Certification: BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL | HDD speed: 5400 RPM | Component for: Surveillance system | Operating temperature (T-T): 0 - 65 °C | Interface: Serial ATA III | Depth: 147 mm | HDD size: 3.5" | HDD average transfer rate: 175 MB/s | Type: HDD | Storage drive buffer size: 128 MB | HDD capacity: 4 TB | Height: 26.1 mm | Weight: 550 g | Width: 101.6 mm | Storage temperature (T-T): -40 - 70 °C