Hikvision DS WD40PURX-78 (Original) HDD-4tb

Characteristic Description Model DS WD40PURX-78 (Original) HDD-4TB Type Hard disk (HDD) Volume 4TB Interface SATA III (6Gb/s) Format 3.5 inches Rotation speed 5400 rpm Device type NAS (network attached storage) Cache memory 64 MB RAID support Yes, supports RAID 0, 1, 5, 10 and JBOD Power consumption 4.5 W in operation, 3.0 W in idle mode Reliability 1 million hours MTBF (mean time between failures) Operating temperature 0°C to 65°C Warranty 3 years Data transfer rate 150 MB/s