The MV-4300 Provides up to 68 inputs and 8-monitor outputs in a 3U enclosure. Add up to 3 optional input cards and 1 interface expansion card. Also accepts a hot-swappable power supply. Displays up to 110 windows. Choose from 2 inputs + 2 outputs for 12G-SDI or 8 inputs + 4 outputs for 3G/HD-SDI + 4 outputs for HDMI. Add up to 17 inputs for 12G-SDI.