Western Digital Ultrastar DC HC550 3.5" 18TB 7200rpm 512MB SATA3 (0F38459/WUH721818ALE6L4)

Features:HDD interface transfer rate: 6 Gbit/sComponent for: Server/workstationHDD capacity: 18 TBRead seek time: 7.5 msHDD sustained transfer rate: 267 MiB/sAverage latency: 4.16 msHDD size: 3.5"Interface: Serial ATA IIIHDD speed: 7200 RPMStart/stop cycles: 600000Mean time between failures (MTBF): 2500000 hHDD average transfer rate: 600 MB/sType: HDDStorage drive buffer size: 512 MBPower:Power consumption (idle): 5.5 WPower consumption (typical): 6 WOperating voltage: 5 / 12 VOperational condit