4x4 4K UHD Matrix Switcher with Integrated Multiview and Extension
The Key Digital KD-MLV4x4Pro is a professional 4x4 HDMI matrix switcher designed to route, extend, and monitor multiple 4K video sources across multiple displays. It allows four HDMI sources to be switched or mirrored to four HDMI outputs and four UHDoTP outputs simultaneously, supporting complex AV systems that require flexible routing, long-distance extension, and multiview monitoring. Included UHDoTP receiver units enable signal extension over standard Cat cable, making this system well suited for conference rooms, control rooms, classrooms, and commercial AV installations.
Seamless 4K Video Switching with Multiview Display Options
Supporting UHD 4K video at up to 60 frames per second, the KD-MLV4x4Pro provides smooth, uninterrupted switching between sources. Seamless switching ensures that transitions occur without screen blanking when operating in full-screen mode. Multiview functionality allows multiple sources to be displayed simultaneously on a single screen using preset or custom layouts, making it easy to monitor several inputs at once while maintaining full-resolution output to other displays.
Long-Distance Signal Extension Using UHDoTP Technology
Built-in UHDoTP transmitters work with the four included receiver units to extend video, audio, control, and power over a single Cat 5e or Cat 6 cable. UHD 4K signals can be extended up to 115 feet over Cat 5e/6 and up to 131 feet over Cat 6a, while 1080p signals can reach even farther distances. This approach simplifies cable infrastructure and reduces installation complexity compared to traditional HDMI cabling.
Independent Audio Routing and De-Embedding Capabilities
The KD-MLV4x4Pro supports independent audio routing, allowing audio to be selected separately from video sources. It de-embeds both analog and digital audio, including surround sound formats, enabling integration with external sound systems, DSPs, or recording equipment. This flexibility is especially useful in presentation and collaboration environments where audio sources may differ from displayed video content.
Flexible Control Options for Professional AV Integration
Control is available through multiple interfaces, including IP, RS-232, TCP/IP, Web UI, and front-panel buttons. These options allow the switcher to integrate easily into automated control systems or be operated manually when needed. Bidirectional IR ports support remote control and device integration, while the front panel provides quick access to routing and multiview functions without additional hardware.
Advanced Processing and Display Management Tools
The system includes advanced features such as EDID management, HDCP 2.2 support, and 4K down-conversion for compatibility with 1080p and 720p displays. Text overlays can be assigned to sources for on-screen identification, and image stacking allows prioritized content display on selected outputs. These tools help manage mixed-resolution systems and improve usability in complex AV environments.
Serviceability and System Reliability
Firmware updates and system servicing are handled through a dedicated micro USB service port, helping keep the system current and reliable over time. The built-in UHDoTP transmitter powers the included receivers directly, reducing the need for additional power supplies at display locations and simplifying overall system maintenance.