1、COMPATIBLE RESOLUTIONS: HD multimedia interface multi switcher supports 1080P 60Hz, 3D, HD multimedia interface1.4, compatible with multiple resolutions, supports HD multimedia interface 1.3a, HDCP1.2, input compatible DV version 1.0. Sound output format compatible with PCM2.0. 2、EXCELLENT HEAT DISSIPATION: HD multimedia interface quad multi viewer with built in Taiwan EP chip, stable transmission, stable performance, high heat dissipation, effective protection of split screen work. Use metal shell, wear resistant and durable, strong anti interference. 3、MULTIPLE SWITCHING MODES: HD multimedia interface 4x1 quad multi viewer has 4 HD multimedia interface inputs, 1 HD multimedia interface output, 4 split screens, 4 types of screenless switching, support for 5 video switching modes, support for infrared remote control. Support for sound and video modes. 4、SUITABLE DEVICES: 4 in 1 out HD multimedia interface switcher for HD multimedia interface input devices are computers, decoders, DVD players, compatible with smart boxes. For HD multimedia interface output devices such as TVs, monitors, projectors. 5、APPLICATION AREAS: HD multimedia interface multiviewer switcher is widely used in multi user video conferencing systems, surveillance, live gaming, major shopping malls, with input and output transmission distances of up to 15m/16.4yd at high speed. Item Type: HD Multimedia Interface Multi Switcher Material: Iron HD Multimedia Interface Input: 4 Inputs HD Multimedia Interface Output: 1 Output Transmission Distance: 15m/16.4yd Remote Control Battery: 2 x AAA Batteries (not Included) 1 x HD Multimedia Interface Multi Switcher 1 x Remote Control 1 x Instruction Manual 1 x Adapter