Passive PoE means that the input and output voltage are equal. Converts non-PoE devices to PoE. Supports 5V, 12V, 24V, 48V. Power supply required for power input - only use the power supply (wall transformer) that comes with the device you are trying to power. PoE injector and splitter kit with 5.5 x 2.1 mm DC jack / plug. Used with IP surveillance camera, wireless access point and other devices. Can work up to 30-40 meters / 100-130 feet (depending on cable quality and device draw). Specifications: Injector: RJ45 Male + Power In to RJ45 Female Splitter: RJ45 Female to RJ45 Male + Power Out Supports: 5V, 12V, 24V, 48V Power Pin: 4.5+ and 7.8 Length: 16cm / 6.9in Transmission Distance: 30-40m / 100-130ft Application: WLAN, routers, switches, internet telephony, security monitoring etc. Color: Black Material: plastic Size: 16x1.9x1.8cm Package contents: 5 * PoE injector cable 5 * PoE splitter cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.