Feature: 1. 4K HDMI 8x1 Multi-viewer is with eight sources inputs and one source output. Seamless switch eight sources into one HDMI-ready display in 9 different multi-views at a resolution up to 4k 30HZ. 2. It can display 8 high clear digital video signal on the same screen and has a variety of video segmentation, seamless switching 8 high clear input signal synchronously. 3. The control methods of the switch are flexible, it can be switched via button and IR control. Heavy and durable aluminum housing. 4. It is a very practical and stable switch and easy to install, can be used in major projects, meeting halls, and other places. 5. Supports RS232 control and IR remote control (Ethernet port does not open for users) 6. Shortcut keys for up-and-down dual image mode, Right-and-left dual-image mode, Eight-image mode, Four-image mode. 7. The input resolution is up to 1080p, the output resolution is up to 4k 30hz. 8. Note: Products with electrical plugs are designed for use in the US. Outlets and voltage differ internationally and this product may require an adapter or converter for use in your destination. Please check compatibility before purchasing. Specification: Specifications: Compatible: High Definition Multimedia Interface 1.4, HDCP 1.4, and DVI 1.0 version Support: 8 inputs, 1 output (High Definition Multimedia Interfacecompatible) Support: 12 modes of multi view on one display; Seamless switching for single input Input resolution supports: 1080P, 720P, 1080i, 1024x768, 1360x768 (not support 3D) Output resolution supports: 1080P 60HZ, 2560x1600 60HZ, 2560x1440 60HZ, 3840x2160 30HZ (not support 3D) Support: input 1080p and 4k output. DC12V: DC12 power port. IR: IR receiver. OUT: High Definition Multimedia Interface output port. Audio: Audio select. Switch: 4k or 1080p output select. Support modes: 1: 1 screen; 2 : 4 screens; 3: 6 screens; 4: 8 screens; 5: 1 Big 5 small screens; 6: 2 Big 4 small screens Item Size: 20.5x9.7x2cm Item Weight: 390g Package Size: 24X13.8X6cm Package Weight: 630g . Package List: 1* 8x1 High Definition Multimedia Interface Multi Viewer 1*12V power adapter 1*Remote control 1*User Manual