The VM7604 4-Port DVI Input Board is offers an easy way to route any of 4 audio/video sources to any of 4 displays, when used in combination with ATEN’s Modular Matrix Switch. Superior video quality – up to 1920 x 1200 @ 60Hz. EDID Expert – selects optimum EDID settings for smooth power-up and the highest quality display, Audio-enabled. Hot-swappable design for easy integration of I/O boards.