Hard Drive Western Digital AV-25 Hard Drive 500 GB:Western Digital is the industry-leading, pace-setting brand for data storage, offering highly reliable hard drives. This new AV-25 series is no exception to the rule and was specifically designed for CCTVs, PVRs, DVRs, set-top boxes and premium audio systems.Key featuresModern SilkStream and IntellSeek technologiesPerfect reliability 24x7Low power consumptionAlmost inaudible operationContinuous video streaming500GB capacity, Advanced Format2.5Non-stop operationThe hard drive is designed to withstand high temperatures of continuous operation. The SilkStream feature enables the HDD to work with up to five HD streams and optimises their simultaneous storage. Western Digital have also tested AV-25s compatibility with a variety of AV products, including DVD recorders and major security systems manufacturers. Save energyInnovative technologies have helped to reduce the power consumption of the hard drive to an amazing 1.4 watts. In addition, the AV-25 is almost inaudible and features a great thermal management, which is reflected in the MTBF (mean time between failures) reaching up to 1 million hours. Parameters and Specifications:Rotation speed:Controlled by the IntelliPower technology (5,400rpm)Baud rate:Up to 3GB/secNoise:Idle mode: 17dBSearch mode: 22dB