Features: No need to install driver,portable,flexible, plugs and play. Clear output resolution optional among 480P,576P,720P,1080P. Equipped with a desktop controller,signal input channel can be switched with button,making it convenient to store the converter and tidy the desktop. Clear output can switches the aspect ratio and resolution to adapt to various clear displays. Suitable for enthusiasts, security professionals, and home theater aficionados, Specifications: Component:ABS Size:Approx.30x10x5.0CM/11.81x3.94x1.97inch 2Option Type; Product Name:4 Port to HDTV converter and switches Model : M043S HDTV output resolution: 480P,576P,720P,1080P Aspect ratio key: 4:3,16:9,16:10,FULL ONOFF key, ON:Connect the power supply Package Includes: 1pc HDTV Adapter 1pc Desktop Button Controller 1pc User Manual note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.