Feature: 1. High-Performance: Divide a complete high clear image signal into 4 blocks and assign it to 4 video display units (such as rear projection unit, LCD TV, etc.). Complete with 4 video display units to form a large dynamic image wall. 2. 180° Rotation: Using the HDTV as the screen allows you to rotate the screen 180°. You can install the TVs in an orientation with the thinnest edges. Input devices can support 4k, but output devices support 1080P. 3. Create Large 2x2 Video Wall: The 2x2 video wall controller allows you to create eye-catching large format video walls and digital signage displays via LCD splicing screens. There are 8 display modes for your choice. 4. 4K@60Hz Input and 1080P Output: Both the HD compatible input and output support 1920*1080P@60Hz display. Compatible with various computers, laptops, and disc players can all be great signal sources. 5. Easy Installation: No driver needed. A remote control is provided for your easy control, you can also push buttons on the controller directly. It is compatible with most TVs. Please use the High Definition Multimedia Interface compatible cable. Specification: Color: Black Structure: Metal Support input: 1920x1080P, 24/30/50/60Hz, and lower resolutions Support output: 1920x1080P, 60Hz Item Size: 20.5 * 9.7 * 2cm/8.07 * 3.82 * 0.79in Item Weight: 475g/16.76oz Package Size: 24.2 * 13.8 * 5.9cm/9.53 * 5.43 * 2.32in Package Weight: 720g/25.4oz Package List: 1*Controller 1*Power 1*Remote Control 1*User Manual