Feature: 1. High Resolution: 4K HD Multimedia Interface 8x1 multi viewer with 8 HD Multimedia Interface inputs and 1 HD Multimedia Interface output. Seamlessly switch 8 HD Multimedia Interface sources in 9 different multi views, with four HD screen splitting and seamlessly switched output switches. HD Multimedia Interface input resolution up to 1080p, HD Multimedia Interface output resolution up to 4k 30hz. 2. 8 HD Input Signals: 8 HD digital video signals can be displayed on the same screen, and has a variety of video segmentation methods, synchronously and seamlessly switching 8 HD input signals. Using a high end image processing engine, it supports any resolution input of the host computer, without the need for a graphics card or screen. 3. Flexible Control Mode: HD Multimedia Interface screen splitter switching is flexible in control mode, which can be switched by button and infrared control. Multi screen mode to meet different visual habits. 4. Multiple Modes: 8x1 HD Multimedia Interface multi viewer screen supports RS232 control and infrared remote control, upper and lower dual image mode, left and right dual image mode, eight image mode, four image mode shortcut keys. 5. Easy to Use: HD Multimedia Interface multiviewer switch is a very practical and stable switch, easy to install, can be used in the major projects, support fast and seamless switching of pictures, fast browsing, will not miss a picture. Specification: Item Type: HD Multimedia Interface Multiviewer Switch Material: Aluminum Alloy Size: Length: Approx. 252mm/9.92in Width: Approx. 105mm/4.13in Height: Approx. 25mm/0.98in Remote Control Battery: 2 x AAA (Without Included) HD Multimedia Interface: HD Multimedia Interface1.4 Output Resolution Support: 1080P 60HZ, 3840x2160 30HZ. Package List: 1 x HD Multimedia Interface Multiviewer Switch1 x Remote Control 1 x Adapter1 x Instruction Manual Note: Manual measurement please allow some error.