Ruth's sister 2Pcs RJ45 UPOE Splitter Combiner Cable 5V 12V 24V 48V 2.1 5.5mm DC Jack

PoE injector and splitter kit

This two-piece kit converts non-PoE equipment into PoE-enabled devices by combining data and power on a single RJ45 run. Each unit is a passive combiner so the output voltage equals the input voltage, supporting 5V, 12V, 24V and 48V supplies. A 2.1 × 5.5 mm DC jack connects the external power adapter that comes with the target device. The pair is intended for IP cameras, wireless access points and similar network gear.

Upgrade from separate power runs

The cables replace individual AC adapters and mains wiring at each device location, letting you deliver power over the existing Ethernet infrastructure up to 30-40 metres or 100-130 feet. The jump is worthwhile when the device has no native PoE support and running a dedicated power cable is impractical or costly. Distance achieved depends on cable quality and the power draw of the connected equipment.

Check voltage and pinout before ordering

Verify that the device you plan to power accepts one of the supported voltages and uses a 2.1 × 5.5 mm centre-positive barrel connector. The injector uses pins 4,5 for positive and 7,8 for negative, so the remote splitter must match that pin assignment. Ensure your Ethernet cable run does not exceed the 30-40 metre passive limit and that the source power supply can deliver the required current for the load.