DKM HD Video and Peripheral Matrix Switch Transmitter Modular Interface Card, Single-Mode Fiber, DVI-I and USB HID ModuleTransmitter mainboard unit that can be installed in the ServSwitch DKM Modular Housing chassis.Part of the DKM HD Video and Peripheral Matrix Switching system of transmitter and receiver interface cards and housings.Works over single-mode fiber cabling.DVI-I (digital and analog) and USB HID module for DKM Modular Housing chassis.