The M4U eX breaks new ground as one of the world's first USB 3.0 MIDI interfaces, featuring 8 dynamically configurable ports that automatically adapt to your setup. Unlike traditional MIDI interfaces locked into fixed input/output configurations, each port intelligently switches between input and output modes based on your connections. Coloured LEDs on the front panel provide instant visual feedback of your current configuration, making it simple to see exactly how your ports are allocated at any given time.
This compact powerhouse doubles as a USB 3.0 hub with three additional connectors for software dongles, USB keyboards, and other musical equipment, positioning it as the central connection point for your entire MIDI and USB setup. The device offers exceptional timing precision and ultra-low latency performance that outperforms other interfaces in its class, while maintaining compatibility across Windows 7/8.1/10/11 and macOS systems.
Beyond computer-based operation, the M4U eX functions as a fully standalone unit with multiple operation modes accessible via push-button selection. You can route input signals to outputs, merge MIDI data streams, or utilise it as a MIDI thru box without any computer connection required. For larger setups requiring additional ports, multiple units can be connected simultaneously, or you can step up to the 16-port M8U eX model for expanded connectivity options.
- USB 3.0 MIDI interface
- 100% class compliant, works without the installation of a driver
- USB bus powered
- 8 MIDI ports, 4 on the front and 4 on the back
- Automatic input and output detection, each port works as a MIDI input or MIDI output
- Standalone operation possible
- Can be used as MIDI Thru box in standalone mode to send one MIDI signal to 7 outputs
- Can be used as MIDI merger in standalone mode to merge 7 MIDI signals to a single output
- 3-port USB 3.0 hub with external 5V DC power supply to power USB devices (power supply included)
- Multiple units can be used with one computer at a time
- Downwards compatible to USB 2.0 with a USB 2.0 legacy mode
- Optional ESI MIDI Port driver for multi device / multi client operation under Windows available
- Dimensions roughly 17.5cm x 12.0cm x 4.5cm



