Basic Info. Model NO.:4KDK303B Package:Neutral Color box Specification:CE. FCC. ROSH,Website:http://www.szaikexin.com, HDMI Trademark:American, Germany. Brazil Origin:Made in China HDMI 1.4 Verison:4kx2kHome Audio & Theater Speaker Mount:Wall MountHome Audio & Theater Watts Per Channel:<50WPlayer Type:Blue-Ray PlayerSpeaker System Audio Output Mode:StereoFinish:Metal HousingControl:Wiress IR remote controlSound Channel:2.0/5.1/7.1 format to switchFM:Without FMHDMI Quantity:3HS Code:8543709990Production Capacity:8000PCS/MonthProduct DescriptionFEATURES1,Switching is done via itself automatically when signal present on the ports.2,Support HDCP protocol and applicable to source device and high definition display device such as DVD and HDTVwhich have HDMI ports or digital ports, and are compliant with HDCP protocol.3,Support high resolutions up to 1920*1200,including 480i/p,576p,720i/p,1080i/p and 2160p.4,Support HDMI1.45,Extend the transmission distance and improve transmission signal.6,Compatible with DVI by using HDMI TO DVI adapter.7,Plug-and-play.8,Convenient to connect multi-group input signals to display on one HDTV.9,Save space. Allow several sources to use one high definition display device simultaneously.10,Metal casing design and overall shielding without signal interference.11,Select input port by hand freely.12,LED indicates signal and power mode.13,Power supply(Please refer to technical parameter)APPLICATIONIt switches several routes HDMI signals from source device such as DVD, Satellite Receiver, Set-top Box, DV Camera, A/V Receiver and other HDMI enabled device to high definition display device such as HDTV and HDMI Flat Panel Display. HOW IT WORKS1. Connect high definition display device such as HDTV TO HDMI Switch's output port2. Connect source device such as DVD and ps3 TO HDMI Switch's input ports3. After all the connections have been successfully done and then power on, you can select the information you want to view or listen Note: When HDMI Switch works, make sure the source device and display device are well connected with cables. In order to make the relevant ports work properly, firstly power on switch, the power on source device.TECHNICAL PARAMETER IN DETAILHDMI resolution ….....4KX2K/1080p/1080i/720p/576p/576i/480p/480iSupport video color format ^…...24bit/deep color 30bit,36bitAudio output^^^^….............3.5mm Audio+optical SPDIFMax transmission bandwidth….^^…..................^.. 300MHzMax baud rate^^^^^…......................^….9.0GbpsInput/Output TMDS signal ^^...^^^ 0.5~1.5Volts p-pInput/Output DDC signal ^^^^.^^ 5Volts p-p (TTL)Input cable distance.^........…..=10m AWG26 HDMI standard cableOutput cable distance….….....….....=15 AWG26 HDMI standard cableMax working current^^^^^^.........^^500mAPower Adapter format.....input AC(50HZ-60HZ)100-240V;Output DC5VOperating Temperature range....^^^^… (-10 to +55?)Storage Temperature range^…..^^^^… -20 to +60?Operating Humidity range^.....….10 to 90%RH (No Condensation)Storage Humidity range^^….…5 to 95%RH (No Condensation)Dimension (L x W x H) ^^^.^^..…166X64X24(mm)Weight…..^^^.....................^.^..^^^…275g Product Image  This HDMI Switch 3x1 can  switches several routes HDMI signals from source device such as DVD, Satellite Receiver, Set-top Box, DV Camera, A/V Receiver and other HDMI enabled device to high definition display device such as HDTV and HDMI Flat Panel Display.