Input port: 3xHDMI Output port: 1xHDMI Support HDMI 1.4 Version, resolution up to 4K*2K@30Hz The HDMI line connected to the product should not be too long. The total length of the front and rear ends should not be more than 8m at 4K resolution, and 20m at 1080p Compatible with 3D video Infrared Remote control port Micro USB power supply Port With micro usb cable and Infrared receiver and Infrared Remote control