Use CAT -5e /6 replaces VGA wire Support IEEE standard 568B Support all kinds of computer system Support hard disk video recorder， monitor host and other equipment which has a VGA interface Pure physical hardware design Small， lightweight， no power required， easy operating and flexible in wiring Size: (8.4 x 6.2 x 2.7)cm(L x W x H)Package Included: 1 x Extender Sender 1 x Extender Receiver (without retail package)