Ethernet and PoE connections both restrict cable distances to 100 meters between network ports. To overcome this distance limit, network installers can simply connect an PoE Extender in-line with the Cat-5e or Cat-6 cable. With STEAMEMO PoE Extender, PDs (such as IP Security Cameras, VoIP telephones, wireless access points) can be installed at greater distances than 100 meters from one another. By connecting PoE Extender for every extra 100 meters of cable, both Ethernet and PoE can be extended to 250 meters, depending on PDs power required and power source. STEAMEMO PoE Extender does not require any additional power supply and the connected PDs is fed by an single PoE switch or mid-span, which simplifies installation. STEAMEMO PoE extender extends power and data to four PoE devices through an exterior network data cable. Delivers the correct wattage to power your PoE devices through auto-sensing. PoE in connection PoE Swith, 12.36 or 45.78 powered support, support IEEE802.3af & at the power supply, PoE total power can reach 60w