H12MIDI Pro

Premium USB Host MIDI Hub

Your Portable MIDI Brain

Router + Filter + Mapper

Presale starts January 2026 with shipping in February.
Only 400 units available in the first run!

Priced at US$199 (MAP/MSRP)
US$139 during the presale period

Your MIDI Setup - Fully Unlocked

Unify your rig into one compact, reliable, ultra-fast interface

The H12MIDI Pro is the next generation of CME’s standalone MIDI solutions — a compact, ultra-powerful USB Host + TRS MIDI interface designed for creators who work with multiple hardware instruments, computers, or hybrid setups.

Why H12MIDI Pro?

Powerful. Portable. Compact.

The H12MIDI Pro is built for mobility, offering computer-free operation in a durable, lightweight aluminum chassis. It delivers a complete MIDI infrastructure with up to 480 channels — all in a device as compact as a small guitar pedal and as light as a modern smartphone.

6-in-6-out TRS MIDI ports

Connect devices via 3.5mm - 1/8" MIDI I/O Configurable for Type A or Type B via software.

Future-proof 32-bit processor

High-precision transmission at four times the speed with groundbreaking accuracy.

High-speed optocoupler

Seamless synchronization of all MIDI devices with secure error-free MIDI data input.

Expanded USB MIDI connectivity

6x USB-C with up to 16-in-16-out HOST ports.
1x USB-C with up to 8-in-8-out CLIENT ports.

Near-zero latency performance

100% exact transfer of all MIDI messages. Including clock, sysex, MTC and MPE.

HxMIDI Tools for full MIDI control

Configure MIDI splits, merges and advanced MIDI filtering + remapping via free software.

Premium Standalone MIDI Hub

6× USB Host + 6× TRS MIDI I/O — no computer required

The H12MIDI Pro works fully standalone. Connect your USB MIDI keyboards, modules, controllers, synths, digital drums, pedals, and more — then route, filter, merge, map, and customize everything directly inside the interface.
All settings are stored internally, so your routing stays exactly the way you designed it, even after power cycling.

Expand the USB-C host ports with a standard USB hub to access up to 16-in / 16-out USB host ports.

High-Performance Computer Mode

8× virtual MIDI ports via USB-C

Connect the H12MIDI Pro to your Mac, Windows PC, iOS, Android, Linux, or ChromeOS device using the USB-C client port.
Your software will instantly detect all 8 IN and 8 OUT virtual ports (plug-and-play, no driver required).

Expand with Bluetooth MIDI

Ultra-low latency wireless MIDI via USB-C or TRS MIDI

Add CME WIDI Jack (TRS MIDI) or WIDI Uhost (USB MIDI) and turn the H12MIDI Pro into a hybrid MIDI hub.
Enjoy ultra-low 3ms latency with Smart Connectivity Algorithms and support for WIDI group connectivity.

MIDI Routing + Filtering + Mapping

Configure via HxMIDI Tools software (Win/Mac/Android/iOS/Linux)

With the free HxMIDI Tools app, you can route, filter, map, remap messages, switch TRS A/B, manage presets, and update firmware across macOS, Windows, iOS, Android, and Linux Ubuntu, with all settings stored securely inside the hardware.

Start Guide

MIDI Router

Simply configure MIDI thru, MIDI merge and MIDI split setups via the free software.

MIDI Filter

Easily filter out any MIDI message from any MIDI channel on both inputs and outputs.

MIDI Mapper

Transforms your knobs, buttons, and sliders into expressive tools for complete control

6 Presets (Button + MIDI)

Supports up to 6 presets, switch between configurations without a connected OS

Smart Power & Visual Control

Flexible powering with clear real-time feedback

The H12MIDI Pro offers versatile USB-C or 9V DC power options and a dedicated 25-LED feedback system that gives you instant visibility of every port and function in your MIDI setup.

Dual Power Options

Use USB-C (5V) from a computer, charger, or power bank, or power the unit via a 9V/3A DC input—perfect for pedalboards and standalone setups. The USB Host ports can supply up to 3A of total power to connected devices.

LED Feedback System

A set of 25 LEDs gives you instant visual feedback for every signal path, including USB Host activity, TRS MIDI IN/OUT, USB Client status, preset selection, panic/reset indicators, and standby mode.

Add Dedicated TRS-to-MIDI cables

Straight TRS Type A (3.5mm - 1/8”) to Angled 5-pin DIN

Choose between 1ft (30cm), 2ft (60cm), 3ft (90cm), and 5ft (150cm) cable length.

CME - The MIDI Experts

100% community-driven technology based on 30 years of experience

CME is a contributing board member of the International MIDI Association

With more than 30 years professional experience, our devices are used and praised by top musicians and engineers around the world.

CME's technology is 100% validated by the worldwide MIDI community

With thousands of MIDI enthusiasts around the world, the active community exchanges knowledge via the vibrant Facebook Group.

Technical Specification

Specifications are subject to change without notice.

Technology	USB Host and client, both compliant with USB MIDI class (Plug and Play)
Connectors	6x USB-C High-speed (Host), 1x USB-C (Client) 6x 3.5mm (1/8") TRS MIDI Inputs & Outputs 1x DC power socket (External 9V-3A DC adapter not included)
Ports	16-in-16-out virtual USB MIDI host ports (for hardware) 8-in-8-out virtual USB MIDI client ports (for computer) 6-in-6-out TRS MIDI ports (selectable Type A/B)
LED Indicators	25x LED lights
Buttons	1x button for Presets 1x button for Panic 1x button for Standby
Compatible Devices	Class compliant USB MIDI client devices Computers and USB MIDI host devices Devices with standard MIDI sockets, including 5V and 3.3V compatibility
Compatible OS	MacOS, iOS, Windows, Android, Linux Ubuntu, Chrome OS
MIDI messages	All messages in the MIDI standard, including notes, controllers, clocks, sysex, MIDI timecode, MPE
Wired transmission	Close to Zero Latency and Zero Jitter
Power Supply	USB-C Socket. Powered via Standard 5V USB bus or charger DC 9V-3A Socket, polarity is positive outside and negative inside USB-C Host socket provides power to connected devices Maximum output current is 500mA for each USB-C Host port
Configuration & Firmware Upgrade	Configurable/Upgradable via USB-C client port using HxMIDI Tool software (Win, MacOS, iOS & Android through USB cable)
Power Consumption	1.6W
Size	148 mm (L) x 60 mm (W) x 33 mm (H) 5.83 in (L) x 2.36 in (W) x 1.30 in (H)
Weight	208g / 7.34oz