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. Maximum support 4K@60Hz input resolution and 1920*1080 output resolution, bringing clear and vivid images. Support multiple screen splicing modes, including 2x2, 1x1, 1x2, 1x3, 1x4, 4x1, 3x1, 2x1. Gold-plated HD interface, effectively reduce data transmission loss, improve signal transmission efficiency, stable and durable. Easy operation, plug and play. Specification: Type: 2x2 video wall controller Color: Black Shell material: Metal Input resolution(max): 4K@60Hz 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