- ● U3Pro Support user-defined 5.2 mega-pixel output ● U3Pro Output pixels up to 15360 horizontally or 6144 vertically ● Free 3-image layout, enabling easy central control of the main and side stage screens. ● Support signal echoing and view real-time input and output signals by software ● Support multi-image preview and output monitoring. ● Support 4K UHD signal processing ● Overlay of multi-group editable and global image-texts and captions. ● Seamless switching of signal and mode, with over 10 transition special effects. ● Support luma key, image transparency adjustment and edge feathering ● Support warm backup of multi-level input signals and multi-machine synchronous cascade outputs