Western Digital 3TB 64MB Cache SATA 3.0Gb/s Internal Hard Drive, 3.5"
Low power WD AV-25 hard drives are the cool, quiet and reliable storage choice for demanding always-on read/write applications. With a SATA 3 Gb/s interface, 32 MB cache and up to 500 GB capacity this 2.5-inch drive is Ideal for DVRs, digital video surveillance and other small form factor environments where power consumption is critical.