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. The drive arm frequently sweeps across the disk to reduce uneven wear on the drive surface common to audio video streaming applications. A fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance. (3.5-inch models only) Leading edge technology delivers improved video quality and AV performance through enhanced error correction capability. (EURS/EURX/AUDX/xxCT models only) Recommended use: Set-top boxes (PVR, DVR, NVR and IPTV), media servers and media centers.