Please note this item ships from an international seller. Expected delivery is 10-15 days. 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(