CME H4MIDI WC: Advanced USB Host MIDI Interface

Q: Can I use the H4MIDI WC without a computer?
A: Yes! The H4MIDI WC is designed for standalone operation. Once you’ve configured your routing via the H4Box software on your computer or mobile device, the settings are saved to the hardware, allowing you to use it in a live rig without a laptop.

Q: How many USB MIDI devices can I connect?
A: You can connect up to 8 USB MIDI devices simultaneously by using a standard powered USB hub connected to the H4MIDI WC’s USB Host port.

Q: Does it support Bluetooth MIDI?
A: Absolutely. The "WC" stands for WIDI Core. It features CME's industry-leading WIDI technology, allowing for ultra-low latency wireless MIDI connection to iOS, Android, Mac, and PC, as well as other WIDI-enabled hardware.

Q: Can it bridge 5-pin DIN MIDI to USB MIDI?
A: Yes. It acts as a bidirectional bridge. You can route MIDI data from your vintage 5-pin gear to modern USB controllers and vice versa.

Q: Does it power my USB controllers?
A: Yes, the H4MIDI WC provides power to connected USB MIDI devices through the USB Host port. For setups with multiple controllers, using a powered USB hub is recommended to ensure stable power delivery.

Technology

• USB: Host And Client, Both Compliant With USB MIDI Class (Plug And Play)

Connectors

• USB-A: 1x (Host)
• USB-C: 1x (Client)
• MIDI DIN Inputs: 2x 5-Pins
• MIDI DIN Outputs: 2x 5-Pins
• DC Power Socket: External 9V-1A DC Adapter Not Included

Expansion

• Optional Module: WIDI Core – Premium Bluetooth MIDI

LED Indicators

• LED Lights: 11x (WIDI LED Indicators Will Only Light Up When The WIDI Core Expansion Module Is Installed)

Buttons

• Preset Button: 1x Button For Presets And Other Functions
• Bluetooth Button: 1x Button For Optional WIDI Bluetooth MIDI

Compatible Devices

• USB MIDI Devices: Class Compliant, Supports One External Hub With Up To 8 MIDI Devices Or Ports
• Computers: USB MIDI Host Devices
• Standard MIDI Devices: Including 5V And 3.3V Compatibility

Compatible OS

• Operating Systems: MacOS, IOS, Windows, Android, Linux And Chrome OS

MIDI Messages

• Supported Messages: All Messages In The MIDI Standard, Including Notes, Controllers, Clocks, Sysex, MIDI Timecode, MPE

Wired Transmission

• Performance: Close To Zero Latency And Zero Jitter

Power Supply

• USB-C Socket: Powered Via Standard 5V USB Bus Or Charger
• DC Socket: 9V-1A (5.5mm x 2.1mm), Polarity Is Positive Outside And Negative Inside
• USB-A Power Output: Provides Power To Connected Devices (Maximum Output Current Is 1A)

Configuration & Firmware Upgrade

• Software: Configurable / Upgradable Via USB-C Port Using HxMIDI Tool Software (Win/Mac/IOS & Android Tablets Through USB Cable)

Power Consumption

• Consumption: 318 mW

Size

• Metric: 140 Mm (L) x 38 Mm (W) x 33 Mm (H)
• Imperial: 5.51 In (L) x 1.50 In (W) x 1.30 In (H)

Weight

• Mass: 102 G / 3.06 Oz

• Advanced USB host MIDI interface with robust routing, filtering, and mapping capabilities
• 32-bit processor delivers high-speed, low-latency MIDI transmission with extreme accuracy
• High-speed optocoupler ensures secure and error-free MIDI synchronization
• Supports full MIDI message set including clock, sysex, MTC, and MPE
• 2-in-2-out 5-pin DIN MIDI ports for reliable hardware integration
• USB-A host port supports up to 8 MIDI devices with an external hub
• USB-C client port enables 4-in-4-out virtual MIDI connections to computers and smart devices
• Free HxMIDI Tools software for configuring splits, merges, filtering, and message remapping
• 11 smart LED indicators provide real-time input/output status for easier troubleshooting
• Dual power options with 5V USB or 9V DC input for mobile or pedalboard use
• Compact, reversible design optimized for space-constrained pedalboards
• Simple Mode allows USB MIDI to DIN connection without needing a computer
• Expand Mode supports multi-device setups with 8 USB MIDI ports and full 5-pin DIN I/O
• Advanced Mode delivers 4 virtual MIDI ports via USB-C across major operating systems
• Innovate Mode enables optional Bluetooth MIDI with ultra-low 3ms latency using WIDI Core
• Customize Mode offers in-depth routing, filtering, and mapping control via software
• Supports up to 4 user presets, switchable via hardware button or MIDI message
• TRS MIDI support via optional 3.5mm cables for compact connections
• Bluetooth MIDI expansion available through WIDI Core, WIDI Master, or WIDI Jack
• Backed by community-driven design, lifetime firmware updates, and responsive support

If you decide a product is not suitable within 14 days of delivery, you can return it to us for a replacement or refund. Returns must be unused and in their original, undamaged packaging.

Some items are excluded from our money back guarantee:
- Computer software that has been unsealed or registered
- Any item that comes directly into contact with the nose, ears or mouth

To arrange a return, just contact our customer service via our customer support form.

Every product at Blip comes with a full manufacturer's warranty for long-term peace of mind. As a specialist UK retailer, we fully support your statutory rights under the Consumer Rights Act 2015. If your gear arrives faulty or develops an inherent problem in the first 30 days, we will provide a full refund or replacement. For faults developing after 30 days, we will facilitate a swift repair or replacement through the manufacturer's official service channels to ensure your gear is back in the studio as quickly as possible.