Endpoint devices (commonly PoE switches) are Ethernet networking equipment that includes the power-over-Ethernet transmission circuitry. A PoE (Power over Ethernet) switch is a network switch that delivers both power and data through a single Ethernet cable to connected devices such as IP cameras, VoIP phones, wireless access points, and IoT devices. This allows a single cable to provide both a data connection and enough electricity to power networked devices such as wireless access points. PoE switches offer an efficient and cost-effective means of transmitting both power and data over one Ethernet cable; this guide will outline everything there is to know about them as well as their benefits, applications and how you can select the ideal switch for your needs. What Is PoE (Power. On this page you will learn what differentiates a PoE enabled switch from a regular LAN switch, when you should use a PoE switch versus a PoE injector and, what exactly is PoE (Power over Ethernet) technology. Find the best options for home, business, and professional use with our detailed buying guide. Omada provides high-power PoE+ and PoE++ models, available in both managed and unmanaged versions from 4 to 48 ports.