5.5x2.1mm DC Plug Active PoE Splitter,48V to 5V 2.4A (Max. 12watt) 10/100Mbps Ethernet,Compliant with IEEE802.3af,With 2.5KV isolation This POE Splitter is suitable for household IP camera with DC 5V power (as the kind in the photo of the instruction),it does not suit equipments with DC 12V power Some managed intelligent Gigabit PoE switches need to set the LAN port of this connected splitter to Manual 100Mb/s mode in the management Settings of switches, otherwise the power supply may work normally but the network connection will not work, such as the following switch, HP 3500-48G-PoE yl Switch (J8693A)