Features: Use any CAT-5 cable to power a device remotely. Use existing power supplies any voltage up to 48v. Determine the distance using our on line distance calculator The 2.1mm x 5.5mm dc jack and plug allow power to be sent on the CAT-5 and split out again at the remote end. If you are powering a 5v device like a camera then see our 5v splitter/converter will solve distance problems up to 328 ft This Power over Ethernet injector allows you to power devices remotely and eliminates the need for 110vac transformers at the far end. Since standard Ethernet needs only 2 of the 4 pairs in a CAT-5 cable 2 pairs are unused. Passive POE uses pins 4/5 for plus power and 7/8 for ground. We use these in our own installations and are making them available for others. Technical Support: contact us via skype - wifiqos - if you have questions Specifications: Color: black white Cable length : 17.5cm Net weight:53g Packing weight:63g Note: the distance you can power a device depends on the voltage and watts required by the device. You can use our online calculator to avoid problems Package included: This kit has 2 pieces an Injector and a Splitter. 1* Female RJ45 connector to 2.1mm x 5.5mm female jack 1* Female RJ45 connector to 2.1mm x 5.5mm power plug