This POE splitter must be connected with POE Switch or 48V POE Injector so that it can supply power to a connected DC5.5*2.1 Port IN DC 5V device. Power Output Port: 5.5*2.1mm DC Port Power Output Voltage: DC 5V 2.4A(Max. 12 Watt) RJ45 female INPUT Port: Support the IEEE 802.3af/802.3at the PoE Switch Support the IEEE 802.3af/802.3at the POE Injector Support DC44V-57V Unsolicited PoE Switch Support DC44V-57V Unsolicited POE Injector Specification: Compliant with IEEE802.3af/802.3at Isolation: 2.5kV Power Input: DC44~57V Power Output: DC5V 2.4A Data&Power INPUT Port: from RJ45 female (Compliant with IEEE802.3af/at PoE) Data Output Port: RJ45 Male Power Output Port: 5.5*2.1mm DC Port Plug Data Transfer Rate: 10/100/1000 Mbps Devices will be detected before poe input Power Pin:support both 1/2(+/-),3/6(-/+) or 4/5(+),7/8(-) Body size: 80 x 27x 22 mm DC cable length£º165mm RJ45 Modular Plug cable length£º155mm Weight : 55g Operation Temperatue:-20¡æ ~ 45¡æ Storage Temperature:-30¡æ ~ 70¡æ Item Included: Gigabit DC5V 2.4A Active PoE Splitter(5.5X2.1mm Power Plug) x1 Notice: Yellow LED(power) will be light up when micro USB connects to the device. Green LED(data) never light in any circumstances,two reasons are below, 1 splitter allows data to input and output through its RJ45 port, but no indicator on this splitter indicates the status of the data transfer. Only one power indicator shows the working status of the POE. 2 to the cost problem,the network interface component is from the universal components which own two LEDs on the market.