Expand your DVR's storage capacity with the Western Digital My Book AV DVR Expander. With a storage capacity of 1TB, this external hard drive is compatible with both eSATA and USB interfaces. The sleek black design matches any setup, making it a seamless addition to your entertainment system. This unit comes with a power cord for easy setup and offers reliable storage for your favorite shows and movies. As an untested item, it may require some troubleshooting, but with Western Digital's reputation for quality products, this DVR expander is a great investment for any home entertainment setup.