8-in/8-out USB 2.0 MIDI Interface

M8U XL offers maximum MIDI connectivity with 8 independent MIDI inputs and 8 independent MIDI outputs, providing 128 MIDI channels - all via a single USB 2.0 (or USB 1.1) connection to your PC or Mac.

The 1U sized replacement for M8U provides 1 MIDI input and 1 MIDI output on the front for easy access, next to status LEDs for all MIDI I/O ports. All the the other MIDI I/O connectors are on the backside of the unit.

Like with all current MIDI interfaces from ESI, M8U XL shows the real meaning of Plug-n-Play as the installation could not be more simple: under Windows XP, Windows Vista, Windows 7, Windows 8.1, Windows 10 and Mac OS X, no driver installation is required.You simply plug-in the unit and the device with all MIDI I/O port will be detected automatically and can be used imediatly. The unit is fully class compliant, making it compatible with various other operating systems like various Linux distributions.

If you need more than 8 MIDI in and outputs simultaneously, you can even use two M8U XL on the same computer at the same time. Using the optional downloadable driver, M8U XL becomes multiclient capable, allowing you to use its MIDI I/O ports in several applications simultaneously.

M8U XL is no longer in production. As possible replacements, you can consider our 8-port interface M4U eX and the 16-port interface M8U eX.



  • 19" / 1 HE Case
  • 8 MIDI in / 8 MIDI out - 128 MIDI channels
  • high-speed connection to USB-equipped PC or Mac
  • MIDI activity indicators for each port
  • Plug & Play installation
  • compatible with Windows XP and Windows Vista/7/8/8.1/10 (32-bit/64-bit) and Mac OS X
  • multidevice & multiclient driver available for Windows XP, Vista, 7, 8.1
  • fully class compliant, making it compatible with other operating systems
  • dimensions: roughly 48.0cm x 13.5cm x 4.5cm

Reviews and Testimonials

Here are selected reviews of M8U XL:


Dr Derek Williams, arranger, conductor and producer and user of various ESI products such as uniK 04 and uniK 05 is using two M8U XL in his studio in Edinburgh as the backbone of his MIDI setup.



Markus Thiel wrote in Keyboards 2/2012 (Germany) about M4U XL, M8U XL and MIDIMATE II: "The MIDI interfaces of ESI perform their special job with ease on the highest technical and practical level. You really cannot expect more from a MIDI-to-USB interface!"



iDJ (UK) checked our M8U XL in January 2009 - here is a quote: "As with previous ESI units we've reviewed, it's a workhorse that gets the job done well." - check the full review here.



Gearslutz user Evaw Evisserppo worte a nice review for the M8U XL USB MIDI interface and mentions "I can thoroughly recommend the ESI M8U XL." - read the full review here!


If you are interested in adding a review to this list, do not hesitate and contact us.