Black Box DKM FX Receiver Modular Interface Card, HDMI and USB HID over CATxThe Black Box DKM FX Receiver Modular Interface Card is a premium solution for professional AV environments where flexibility, reliability, and scalable performance matter. Built to complement the DKM FX family, this modular interface card unlocks seamless HDMI video with audio and USB HID data over CATx cabling, enabling crisp, synchronized AV distribution across rooms and campuses. Whether youre designing a corporate boardroom, digital signage