500GB Western Digital GreenPower AV-GP 3.5-inch SATA Hard Drive (8MB cache) - factory refurbished, 1 year warranty by Western Digital

WD AV-GP drives are the cool, quiet and reliable choice for always-on 24/7 AV applications. They are designed for media center, media server, surveillance, digital signage and other AV systems requiring perfect audio and video, low heat, low power and long term reliability.

With power reduction of up to 40%, it delivers cool and quiet operation and reliability perfect for audio video applications such as PVRs, DVRs, set-top boxes (STBs) as well as surveillance video recording.

500GB internal desktop hard drive, 8MB cache, SATA/300 3Gbps interface.