WD AV-25 500GB 2.5" Internal Hard Drive, 16MB Cache, 5400 RPM, SATA 3 Gb/s Interface

The WD AV-GP 500GB SATA hard drive delivers 24x7 quiet operation, low temperature, high reliability and optimized streaming with a storage capacity of 500GB for storage intensive AV applications such as PVRs, DVRs, set top boxes and surveillance video recording. Furthermore with the combination of WD's IntelliSeek, IntelliPark and IntelliPower technologies, they have reduced power consumption by up to 40 percent compared to competitors' drives.