Feature: 1. It can divide a complete HD image signal into 4 blocks and assign to 4 video display unit, to form a large dynamic image screen. 2. Support 1-channel HD input and 4-channel HD output. 3. Support 480i/480p/576p/720p/1080p/4K30p/4k60p input, 1920*1080 output resolution, bringing clear and vivid images. 4. Support multiple screen splicing modes, including 4x1, 3x1, 2x2, 2x1, 1x4, 1x3, 1x2. 5. Plug and play, no driver required, easy to operate. Specification: Features: It can divide a complete HD image signal into 4 blocks and assign to 4 video display unit, to form a large dynamic image screen. Support 1-channel HD input and 4-channel HD output. Support 480i/480p/576p/720p/1080p/4K30p/4k60p input, 1920*1080 output resolution, bringing clear and vivid images. Support multiple screen splicing modes, including 4x1, 3x1, 2x2, 2x1, 1x4, 1x3, 1x2. Gold-plated interfaces, effectively reduce data transmission loss, improve signal transmission efficiency, stable and durable. Plug and play, no driver required, easy to operate. Specification: Type: 2x2 video wall controller Model: NK-BT14 Shell material: Metal Input resolution: 480i/480p/576p/720p/1080p/4K30p/4k60p Output resolution: 1920*1080 Item size: 20.5 * 9.7 * 2cm /8.07 * 3.82 * 0.79in Item weight: Approx. 475g /16.76oz Packing list: 1 * Video wall controller 1 * Power adapter 1 * Remote control(2 AAA batteries are not included ) 1 * User manual Package List: 1 * Video wall controller 1 * Power adapter 1 * Remote control(2 AAA batteries are not included ) 1 * User manual