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CME H12MIDI Pro Premium USB Host Midi Hub


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Expected in March 2026

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.

Key Features

  • 6× USB-C Host ports (expandable to 16-in / 16-out with a USB hub)
  • 6× TRS MIDI IN + 6× TRS MIDI OUT - 3.5mm (1/8”) - Type A/B selectable)
  • 1× USB-C Client port providing 8×8 USB MIDI connectivity for macOS, Windows, iOS, Android, Linux, and ChromeOS.
  • Up to 480 MIDI channels across host, client, and TRS ports
  • Near-zero latency performance, opto-couplers, and 32-bit processor
  • Dual-power support: USB-C 5V or 9V DC
  • 25-LED feedback system for instant visual monitoring
  • Compact 148 × 60 × 33 mm chassis, only 208 g
  • Standalone routing, filtering, mapping, and up to 6 presets, all configurable through the HxMIDI Tools software (Win/Mac/Android/iOS/Linux) for deep customization and control

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.


WIDI Uhost
WIDI Jack

H12MIDI Pro


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.

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.

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

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