Power-conserving WD AV-GP hard drives are based on the WD GreenPower Technology platform designed to deliver power savings as the primary attribute. These SATA drive are equipped with IntelliPower technology, fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance. With power reduction of up to 40 percent, they deliver cool and quiet operation and reliability that is perfect for audio video applications such as PVRs, DVRs, set-top boxes (STBs) as well as surveillance video recording.