Seagate SkyHawk internal hard drive 4 TB 256 MB 3.5 Serial ATA III (ST4000VX016)

HDD interface transfer rate: 6 Gbit/s | Component for: PC | Mean time between failures (MTBF): 1000000 h | Interface: Serial ATA III | RV sensor(s): Yes | Depth: 147 mm | Power consumption (idle): 2.5 W | Height: 20.2 mm | Operating voltage: 5 / 12 V | Operating temperature (T-T): 0 - 65 °C | Weight: 490 g | Width: 101.8 mm | HDD sustained transfer rate: 180 MiB/s | Power consumption (read): 3.7 W | Start/stop cycles: 600000 | HDD capacity: 4 TB | Start-up current: 1.8 A | HDD size: 3.5" | Power consumption (standby): 0.25 W | Power consumption (write): 3.7 W | Harmonized System (HS) code: 84717050 | Maximum number of cameras supported: 64 | Recording technology: CMR | 24/7 operation: Yes | Type: HDD | Storage drive buffer size: 256 MB