PoE WiFi Extenders and Access Points: A Buying Guide

It is a WiFi networking device powered through Ethernet, though the product may be a repeater or an access point. Check whether it receives the router's signal wirelessly or needs a wired network connection.

No. The device must support PoE, and the source must match its supported standard or passive voltage. Follow the manufacturer's power requirements to avoid incompatibility.

No. An access point generally uses a wired Ethernet backhaul to provide WiFi, while a repeater relays a wireless source. Some models offer both modes.

PoE changes how a device receives power; it does not itself increase wireless range. Coverage depends on radio design, placement, antennas and the network connection.