The Hall Research EX-4KU is a kit comprised of a single-gang wall plate transmitter together with a low profile Receiver and associated power supply. The wall plate provides an HDMI video input plus a USB Host port for connection to a host such as a PC or Mac computer. The system uses HDBaseT 2.0 for the most reliable operation and widest compatibility possible. HDMI input supports all PC or HDTV resolutions up to and including 4K. The USB Extension is compatible with keyboard, mouse, touch-screen or any other USB 1.1 and 2.0 device such as Smartboards, interactive displays, and USB webcams. EX-4KU HDBaseT Wall Plate Extender is perfect for all commercial AV and Educational K-12 installations. No programming is required and the system can be installed and operational in minutes.The EX-4KU can transmit HDMI signal over CAT6/6a/7 to a distance up to 130 ft for 4K at 60 Hz 4:2:0 or up to 230' for 1080 p 60 Hz. Full duplex RS-232 is also extended for installations that need added serial control. The wall plate provides two USB charging ports for added convenience.