A 48V POE switch is a kind of Power Over Ethernet switch that transmits electric power to devices at 48 volts. Most systems use this voltage is used in POE for balancing the safey features and delivering power. For instance, these switches can be used to supply power to IP cameras, enterprise wireless access points and industrial sensors. In large surveillance systems, a 48V POE switch is able to power multiple high definition IP cameras for video streaming, ensuring there is enough power available for them to operate optimally.