IPCamPower POE Powered 2 Port Switch & Network Cat5 Cat6 Midspan Cable Range Extender Passthrough Repeater for IP Cameras Can Serve 2 Purposes (or both at the same time): #1) Can be used as a POE powered 2 Port POE switch #2) Can be used to extend your network cable run past the normal 300 meter distance limitation POE powered 2 Port switch: Has 1 port in and 2 ports out. Takes incoming POE through the in port and will act as a 2 port unmanaged POE switch through the 2 out ports to 2 more networkable devices. POE and/or Network Range Extender: Allows you to run cable lengths past the tradition 300 feet restriction. Daisy chain up to 2 extenders to run upwards to 900 feet Requires no local power, you dont need a power source nearby the extender as its simply powered from the incoming POE power from your POE switch or injector at the beginning of the cable run. (POE injector/switch is not included) Wall mountable low profile design. only 3.1" x 3" x 1"