The Matrox Xmio cards are used as Vizrt's HD and SD multi-channel video-and audio I/O solution - Two multi-rate HD/SD SDI video inputs or one video + key - Four multi-rate HD/SD SDI video outputs or two video + key - 8-in/16-out balanced AES/EBU audio I/O channels - 16 embedded audio I/O channels per SDI stream - Onboard HD to SD down converter - Onboard pixel-based 2D DVE engine for HD and SD - Onboard compositor with RGBA to YUVA converter for HD and SD - Automatic video relay bypass and watchdog support