It can easily switch or distribute 4 HD signals on 4 HD compatible monitors or projectors. 4 output ports can display ultra HD video from the same or different signal sources. HD matrix 4x4 reshapes and amplifies the input signal and transmits it losslessly through cables. Supports audio extraction from HDMI-compatible Out1, 3.5mm headphone jack and optical fiber jack for simultaneous output. Applied in entertainment centers, retail and websites, HDTVs, set-top boxes, DVDs, projectors, data center control, information distribution, conference rooms, schools and corporate training environments for digital HDTV programs. Resolution: up to 4K@30Hz Supported video formats: 8/10/12-bit color depth Supported audio formats: DTS-HD/Dolby-trueHD/LPCM7.1/DTS/Dolby-AC3/DSD Maximum transmission rate:8Gbps HDMI input port: 4 HDMI output port: 4 Maximum operating current: 0.8A Power adapter: Input: AC (50HZ, 60HZ) 100V-240V; Output: DC12V/1A Operating temperature range -15 to +45℃ Operating humidity range: 5 to 90%RH (no condensation) The product appearance and printed words may vary depending on the batch, but this does not affect use. Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Voltage:AC100-240V Colour:Black Material:Metal+Plastic Package Contents: 1 * HDMI-compatible Matrix 1 * Power Adapter 1 * Remote Control 1 * Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.