Western Digital Ultrastar DC HC555 internal hard drive 20 TB 7200 RPM 512 MB 3.5 SAS3

Mean time between failures (MTBF): 2500000 h | HDD sustained transfer rate: 272 MiB/s | Average latency: 4.16 ms | 24/7 operation: Yes | Operating vibration: 0.67 G | HDD capacity: 20 TB | Operating shock: 50 G | HDD interface transfer rate: 12 Gbit/s | Start/stop cycles: 600000 | HDD size: 3.5" | Hot-swap: No | Operating voltage: 5 / 12 V | Storage drive buffer size: 512 MB | Height: 26.1 mm | HDD average transfer rate: 285 MB/s | Interface: SAS3 | HDD speed: 7200 RPM | Power consumption (idle): 5.7 W | Non-operating vibration: 1.04 G | Non-operating shock: 250 G | Warranty period: 5 year(s) | Component for: Server/workstation | Width: 101.6 mm | Storage temperature (T-T): -40 - 70 °C | Power consumption (typical): 9.2 W | Depth: 147 mm | Operating temperature (T-T): 5 - 60 °C | Weight: 690 g | Type: HDD