Western Digital 22TB 7200rpm SATA-600 512MB Red Pro WD221KFGX

Features:HDD interface transfer rate: 6 Gbit/sHDD speed: 7200 RPM24/7 operation: YesStorage drive buffer size: 512 MBMean time between failures (MTBF): 1000000 hHot-swap: NoInterface: Serial ATA IIIHDD capacity: 22 TBComponent for: NASType: HDDStart/stop cycles: 600000Native Command Queuing (NCQ): YesAdvanced Format (AF): YesHDD size: 3.5"Shock sensor: YesError Recovery Control (ERC): YesNoise level (idle): 20 dBWorkload rate limit: 300 TB/yearPower:Power consumption (standby): 1.2 WPower consum