GV-POEX0100 is a single-port, 10/ 100 PoE extender that can extend the distance between a PoE switch and a GV-IP Camera by 100 m ( 328.08 ft) for every extender installed. They can be serially connected, with no additional power supply, to transmit power and data to a GV-IP Camera as far as up to 600 meters ( 1968.5 ft) away from a PoE switch. Package Contents GV-POEX0100 One-Port PoE Extender 2 x Screw 2 x Screw Anchor GV-POEX0100 Installation Guide