Seagate IronWolf Pro ST4000NT001 internal hard drive 4 TB 7200 RPM 256 MB 3.5

HDD size: 3.5" | Rotational Vibration (RV) sensors: Yes | Workload rate limit: 550 TB/year | Power consumption (typical): 8.7 W | Warnings: Do not open or disassemble. | Warnings: Do not drop and avoid strong impacts. | Warnings: Do not expose to high temperatures or moisture. | HDD speed: 7200 RPM | Power consumption (idle): 5.5 W | Depth: 147 mm | Operating voltage: 5 / 12 V | Noise level (idle): 28 dB | Type: HDD | Power consumption (off): 1 W | Storage temperature (T-T): -40 - 70 °C | Height: 26.1 mm | HDD capacity: 4 TB | Width: 101.8 mm | Weight: 650 g | Component for: NAS | HDD sustained transfer rate: 250 MiB/s | Start-up current: 2 A | Power consumption (standby): 1 W | HDD interface transfer rate: 6 Gbit/s | Non-operating shock: 300 G | Operating shock: 70 G | Operating temperature (T-T): 0 - 65 °C | Mean time between failures (MTBF): 2000000 h | Non-operating vibration: 2.27 G | Storage drive buffer size: 256 MB