Use CAT -5e /6 replaces VGA wireSupport IEEE standard 568BSupport all kinds of computer system , Support hard disk video recorder, monitor host and other equipment which has a VGA interface , Pure physical hardware designSmall, lightweight, no power required, easy operating and flexible in wiringSize: (8.4 x 6.2 x 2.7)cm(L x W x H).Package Included:1 x Extender Sender1 x Extender Receiver*This product is not refundable