4MS Meta Module MetaModule Embedded Virtual Modular Synthesizer VCV Patch Player MINT! Like NEW! Includes Original Box, Packaging, Power Cable, SD Card & 4 Knurlies Screws. Used only in a smoke/pet free pro studio!

Virtual Patch Player The MetaModule puts real knobs and jacks on virtual software modules. Step back from the computer and make music with hardware, while keeping the flexibility and expandability of software.

The MetaModule comes with over 160 built-in modules from 4ms Company, Befaco, HetrickCV, NonlinearCircuits, and Scanner Darkly, plus clones of popular classics such as the Mutable Instruments eurorack modules, fun physical modeling algorithms, and lots of handy utilities.
All of the included modules are also available on the computer using the free program VCV Rack. Whether you make patches on VCV Rack and transfer them to the MetaModule, or if you just create patches directly on the MetaModule, there are plenty of creative modules to inspire new ways to make music.

MetaModule Plugins
If the 160+ built-in module aren’t enough, you can load more modules as plugins. As of late 2025 there are over 1,500 modules in third-party plugins from Bogaudio, Valley, ChowDSP, NANO Modular, and the list is growing.

Mapping Knobs and Jacks

The MetaModule has 12 knobs that can be mapped to virtual knobs. Each knob can be mapped to up eight virtual knobs, and each mapping can have a different range and offset. You also can save a group of mappings as a Knob Set and switch between Knob Sets with the encoder. You also can map the 8 inputs and 8 outputs to virtual module jacks. Also, the MetaModule is a USB MIDI host, so you also can map MIDI CC, note, gate, and other parameters to knobs and jacks.

Expanders

There are lots of ways to customize your MetaModule. A Wifi expander allows you to wirelessly transfer patches from your computer. Add eight more knobs with the Knob expander, or buttons with the Button expander. A CV/Audio expander adds more high-resolution inputs and outputs, and the Gate In/Out expander adds not only gate jacks but also TRS MIDI and I2C.

Under the Hood

There are six CV/Audio inputs, two gate inputs, and six CV/Audio outputs. The CV/Audio jacks are all 24-bit, 48kHz DC-coupled, -10V to +10V. A USB-C jack accepts MIDI devices and thumb drives. Patches and plugins can be loaded via a USB drive or microSD Card, and internal flash memory lets you save patches you always want to come back to.
The processor is more advanced than anything 4ms has used in the past, and is among the most powerful processors found in Eurorack. Startup time and latency are blazingly fast.

Plugin Development
We have an SDK available to make it easy for VCV Rack plugin developers to convert their plugin to a MetaModule plugin. Our licensing terms are non-restrictive: developers are welcome to distribute their plugin in any way they wish, commercially or not. Visit out github!

• Virtual software modular synthesizer for your modular synthesizer
• Offers an array of mappable inputs, outputs, and knobs to be used with software modular patches
• 800MHz Dual-Core Cortex-A7 + Cortex-M4 (in other words, very powerful for a Eurorack module)
• Six audio inputs and eight audio outputs: DC-coupled, 24-bit 48kHz, +/-10V range
• Includes over 160 modules by 4ms, Befaco, HetrickCV, NonlinearCircuits, Scanner Darkly, and more
• Includes numerous Mutable Instruments modules, physical modeling tools, abundant utilities, and more
• Patches may be designed on the MetaModule or in VCV Rack and transferred onto MetaModule
• SDK available for converting VCV Rack plugins to MetaModule
• 200+ third-party plugins already available
• Easy parameter mapping scheme
• Graphical and CPU refinements, customization and MIDI-to-CV functionality