La description

Our devices offers solutions for noise, space and security concerns, data center control, information distribution, conference room presentation, school and corporate training environments.
Features :Support HDMI 1.4aSupport 3D video formatSupport highest resolution up to ***0p/*0HzSupport 2.*5Gbps data rate and tmds clock up to **5MHzSupport deep color 8/*0/*2 bitSupport up to *5metres AWG*6 HDMI standard cable length, output up to *5metres AWG*6 cable length Support 3.5 mm audio output and optical outputSupport 5.1 audio channelSupport single high definition display and multiple output HD signal sources, such as DVD Players,A/V receivers and Set Top Boxes.  Need DC5V/2A power supply SPECIFICATIONS:                                   
HDMI version..............................................HDMI 1.4a
HDMI resolution................*4/*0/*0fs/***0p/***0i/**0p/**6p/**6i/**0p/**0i
Support video format ....................8/*0/*2 bit deep color
Support audio format.....................DTS-HD/Dolby-trueHD//DTS/Dolby-AC3/DSD
Max bandwidth............................**5MHz
Max baud rate............................2.*5Gbps
Input cable distance... ................≤*5m AWG*6 HDMI standard cable
Output cable distance...................≤*5m AWG*6 HDMI standard cable
HDMI Input..............................4
HDMI Output.............................2
Max working current..................... **0mA
Power adapter format....................Input: AC (*0HZ, *0HZ) **0V***0V; Output: DC5V/2A
Operating Temperature range.............(**5 to **5ºC)
Operating Humidity range................5 to *0%RH (No Condensation)
Dimension (L x W x H).............    **0x*0x*5 (mm)
Weight.................................**0g

Operating and Connecting:
 Connect each HDMI source devices and of HDMI Matrix with one HDMI cable Connect display devices and output of HDMI Matrix with one HDMI cable.Connect audio output and stereo amplifier with stereo headphone or fiberUse the IR remote control to switch the signal source freely.Connect 5V power supply to the HDMI 4x2 Matrix. 
Accessories :HDMI MatrixIR Remote Control5V power adapter User Manual