Introduction: This HDMI 4x1 Quad Multi-viewer is a high performance with four HD screen segmentation and seamless switching output switch. It can display 4 HD digital video signal on the same screen, and has a variety of video segmentation, seamless switching 4 HD input signal synchronously. The control methods of the switch is flexible, it can be switched via button and IR control. It\'s a very practical and stable switch and easy to install, can be used in the major projects, meeting halls and other places. Features: ● Compliant with HDMI 1.3a,HDCP 1.2. ● Supports up to 1080p High Definition resolution. ● Supports 720/1080p output resolution. ● Supports audio switch. ● Supports fast switching. ● Supports Equalizer TMDS Output: 25MHz 225MHz TMDS clock. ● Supports Blue-Ray 24/50/60fps/HD-DVD/xvYCC. ● Inputs can be switched with the IR remote controller, also can be controlled by built-in button. ● Extend the transmission distance and improve transmission signal. ● Compatible with DVI through a HDMI to DVI adapter. ● Supports hot plug-and-play. ● LED indicate signal and power mode. ● No loss of quality. ● Installs in minutes.