Western Digital AV-GP WD1600AVCS 160 GB 3.5′ Internal Hard Drive

* A sone is a subjective unit of loudness as perceived by a person with normal hearing., 24×7 reliability, A fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance., Advanced Format (AF), Calculates optimum seek speeds to lower power consumption, noise, and vibration., Highest capacity for audio/video storage, IntelliPower, IntelliSeek, Low Capacity Surveillance, Noise levels have been minimized to less than one sone* – virtually below the threshold of human hearing., Quiet, Reduced power consumption, SilkStream, These drives are designed to last in high temperature alwayson streaming digital audio/video environments such as PVR/DVR and IPTV systems., WD AV drives consume less power by up to 40 percent compared to 7200 RPM hard drives. Lower power means less heat and greater reliability., WD AV drives offer 500 GB and lower capacities suitable for low profile entry level surveillance systems requiring reliability in always on environments., WD AV SATA drives now offer unrivaled storage capacity up to 4 TB – perfect for today's storage intensive applications.