Multifunctional: Our RJ45 combiner offers two 10/100 Mbps data lines over a single Cat5e/6 cable, perfect for POE security cameras, injectors, or switches, and ideal for sharing internet connections across two devices. Cost-effective Solution: Featuring an advanced design, this Ethernet doubler connects two switch ports to one combiner, enabling the 2-way splitter to separate signals at the device end, ultimately saving you money and installation time. Easy & Secure Connection: The upgraded version includes a built-in RJ45-female adapter at the splitter end for easy and secure Ethernet cable extension between cameras and devices, streamlining your entire setup process. Wide Compatibility: Compatible with all POE network security surveillance camera/NVR systems and personal devices with 10/100 Mbps internet data speeds. Reliable Warranty: Benefit from our two-year quality warranty, local replacement service, and 7/24 standby technical support for compl