Western Digital Ultrastar DC HC555 internal hard drive 20 TB 7200 RPM 512 MB 3.5" Serial ATA III

Type: HDD Component for: Server/workstation HDD average transfer rate: 285 MB/s HDD size: 3.5" Mean time between failures (MTBF): 2500000 h HDD capacity: 20 TB 24/7 operation: Yes Interface: Serial ATA III Storage drive buffer size: 512 MB Start/stop cycles: 600000 HDD speed: 7200 RPM Average latency: 4.16 ms Hot-swap: No HDD sustained transfer rate: 272 MiB/s HDD interface transfer rate: 6 Gbit/s Power consumption (typical): 6.4 W Power consumption (idle): 5.3 W Operating voltage: 5 / 12 V Storage temperature (T-T): -40 - 70 °C Operating temperature (T-T): 5 - 60 °C Operating vibration: 0.67 G Non-operating vibration: 1.04 G Non-operating shock: 250 G Operating shock: 50 G Width: 101.6 mm Weight: 690 g Height: 26.1 mm Depth: 147 mm Warranty period: 5 year(s) Warnings: Store away from water and moisture.