1. This - 4x1 Quad Multi-viewer is a high performance with four HD screen segmentation and switching output switch.2. It can display 4HD signal on the screen, and has a variety of video segmentation, switching 4 HD input signal synchronously.3. The control methods of the switch is flexible, it can be switched via button. It's a very practical and stable switch and easy to install, can be used in the major projects, meeting and other .4. - screen switching : panel buttons, Support input resolution: 480i60Hz, 480p60Hz, 576i50Hz, 576p50Hz, 720p50/60Hz, 1080i50/60Hz, 1080p24/30/50/60Hz. control: full screen mode, multi-screen mode, outside tile modeWorking temperature: 0-60Working humidity: 5-95%RH supply: DC5VSwitching time: high-speed switchingFunction:Compliant with - 1.4a, HDCP 1.4;Support multiplexing - 4 input and 1 output;Supports HD resolutions up to 1080p60;Support 4 pictures and seamless switching ( resolution);Support zoom, zoom function;Support multiple output resolutions;Support digital audio LPCM/PCM;Support button switching,Video bandwidth 2.25Gbps;Input port 4 x - (female);Output port 1 x - (female);Audio output LPCM/PCM;Input resolution 480i60Hz, 480p60Hz, 576i50Hz, 576p50Hz, 720p50/60Hz;1080i50/60Hz, 1080p24/30/50/60Hz;Output resolution 1080p, 720p;Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on.size: 116 x 61 x 20mmMaterial: plasticcolour: blackPackage Contents:1 x 4x1 Quad Multi-Viewer1 x supply1 x English User ManualOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.