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CME H4MIDI WC USB Host MIDI Interface

BH #CMF000C02 • MFR #F000C02
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CME H4MIDI WC USB Host MIDI Interface
Key Features
  • Plug-and-Play USB (Host and Client) MIDI
  • MIDI Router + Filter + Mapper
  • 2-In / 2-Out MIDI via 5-Pin DIN
  • USB-A with 8-In / 8-Out Host Ports
The CME H4MIDI WC is a versatile USB dual-role MIDI interface designed for both wired and wireless workflows. It operates as a standalone USB host, allowing plug-and-play connection of USB MIDI clients and devices with seamless bidirectional MIDI transmission. At the same time, it functions as a USB client MIDI interface for Mac, Windows, iOS (via Apple USB Camera Connection Kit), and Android (via USB OTG cable), making it a powerful hub for musicians across platforms.
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CME H4MIDI WC Overview

The CME H4MIDI WC is a versatile USB dual-role MIDI interface designed for both wired and wireless workflows. It operates as a standalone USB host, allowing plug-and-play connection of USB MIDI clients and devices with seamless bidirectional MIDI transmission. At the same time, it functions as a USB client MIDI interface for Mac, Windows, iOS (via Apple USB Camera Connection Kit), and Android (via USB OTG cable), making it a powerful hub for musicians across platforms.

Equipped with a USB-A host port that supports up to 8-in / 8-out connections via an optional hub, a USB-C client port, and two standard 5-pin MIDI IN and out ports, the H4MIDI WC offers flexible connectivity. It also features an expansion slot for the WIDI Core module (available separately), enabling bidirectional Bluetooth MIDI for wireless freedom. With support for up to 128 MIDI channels, the interface handles complex MIDI setups with ease.

Bundled with the free HxMIDI Tools software for macOS/Windows and iOS/Android, the H4MIDI WC offers advanced control over firmware updates, MIDI merging, splitting, routing, mapping, and filtering. All configurations are saved directly on the interface, allowing for full standalone operation. For portability, the unit can be powered via standard USB power or a 9 VDC adapter (available separately).

Futureproof 32-Bit Processor
Experience ultraprecise MIDI transmission at 4x the standard speed. Engineered for flawless performance with 100% accurate delivery of dense MIDI data—no latency, no jitter, no dropouts.
High-Speed Optocoupler
Enjoy secure, error-free MIDI input and seamless synchronization across all your MIDI devices.
Universal MIDI Support
Handles every MIDI message with accuracy and high-speed efficiency—including clock, SysEx, MTC, and MPE—so you're ready for any performance or production need.
Advanced MIDI Routing
Easily configure MIDI Thru, Merge, and Split setups using the free HxMIDI Tools app (available on Windows, macOS, iOS, and Android).
2-In / 2-Out MIDI via 5-Pin DIN
Connect MIDI devices via standard MIDI I/O. Enjoy advanced routing in standalone mode.
Expanded USB MIDI Connectivity
  • USB-A with up to 8-in / 8-out HOST ports.
  • USB-C with up to 4-in / 4-out CLIENT ports.
MIDI Filter
Filter out unwanted MIDI messages from any channel—on both inputs and outputs.
MIDI Mapper
Turn your knobs, sliders, and buttons into expressive, customizable control tools.
Preset Switching (Button + MIDI)
Save up to 4 presets and switch configurations instantly—even without a connected device.
Optional WIDI Bluetooth MIDI
Add wireless functionality with the WIDI Core module (available separately). Enjoy smart Bluetooth MIDI with ultralow 3 ms latency and rock-solid performance.
Plug-and-Play Simplicity
No drivers, no fuss. Instantly compatible with macOS, iOS, Windows, Android, Linux, and Chrome OS.
TRS MIDI via 3.5mm MIDI Cables
Add versatility to your setup with optional, low-profile 3.5mm TRS cables for tight spaces, expanding your connectivity options.
Pedalboard-Friendly Design
Slim, sturdy, and reversible for tight spaces—ideal for packed pedalboards without compromising durability.
Dual Power Options
Power via USB (including power banks) or use a standard DC adapter (available separately) for seamless pedalboard integration.

CME H4MIDI WC Specs

Key Specs
Interface Type
USB MIDI Interface
MIDI I/O
2x DIN 5-Pin Input
2x DIN 5-Pin Output
USB
1x USB-C
1x USB-A
Other I/O
No
System Connection / USB
No
Power Requirements
AC/DC Power Adapter (Not Included), USB Bus Power
Interface Type
USB MIDI Interface
Standalone Operation
Yes
Activity Indicators
11x LED
Latency
0 ms
Connectivity
MIDI I/O
2x DIN 5-Pin Input
2x DIN 5-Pin Output
USB
1x USB-C
1x USB-A
Other I/O
No
System Connection / USB
No
Wireless
Bluetooth 5.0
*Via Optional Adapter
Sync Sources
No
Compatibility
OS Compatibility
Computer: macOS / Windows / Linux / Chrome OS
Mobile: Android/iOS
Power
Power Requirements
AC/DC Power Adapter (Not Included), USB Bus Power
Power Supply Output
9 VDC at 1 A
Power Consumption
318 mW
Power Over MIDI Requirement
5 VDC
Physical
Dimensions
5.5 x 1.5 x 1.3" / 140 x 38 x 33 mm
Weight
3.6 oz / 102 g
Packaging Info
Package Weight
0.365 lb
Box Dimensions (LxWxH)
6.5 x 2.3 x 1.6"

CME H4MIDI WC Reviews

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