This 4K HDMI network extender kit is designed for extending HDMI signals over IP networks via Cat5e/6 cables. It supports up to 4K@30Hz resolution, backward compatible, and has a transmission distance of up to 120 meters. The kit includes a transmitter, receiver, IR remote, and DC adapter, making it a complete solution for extending HDMI signals. It also supports IR passback, one-to-one or one-to-many connections, and has a low latency of 80-220ms. The device is suitable for use with PCs, TV boxes, and other HDMI devices, and is ideal for applications such as home entertainment, education, and commercial displays.