1HIGH RESOLUTION: The splicer supports up to 4 monitors to splicing a picture freely, the resolution supports 4K at 30Hz, and supports 232 serial port manipulation. 2LARGE SCREEN SPLICING FUNCTION: Support inputting the signal source to the splicer, and the splicer splices multiple large screens into a complete large picture. 3HIGH DEFINITION LED: 4K high definition resolution picture is delicate, full of color, and the picture quality is truly restored, plug and play, convenient and practical. 4COMPATIBILITY: Multi system compatibility, compatible with for Windows series, for Linux, for Android and other system device input, it can be used without installing software. 5APPLICABLE: Suitable for splicing screen engineering, conference office, commercial advertising display, multimedia teaching, bars, exhibition halls, catering, clothing and jewelry stores, security monitoring, etc.