GMMK 3 PRO HE - 65%, 75% & Full Size (100%)

What’s in the Box for Wired & Wireless

Wired

• 1 x GMMK 3 PRO HE (or GMMK 3 PRO HE Barebones)

• 1 x Braided Cable

• 4 x HE Sample Switches

• 6 x Extra Screws and O-Rings

• 1 x Switch Puller

• 1 x Keycap Puller

• 1 x Screwdriver

• 1 x Quick Start Booklet

Prebuilt Only

• 4 x macOS Alternate Keycaps
   

Wireless

• 1 x GMMK 3 PRO HE Wireless (or GMMK 3 PRO HE Wireless Barebones)

• 1 x 2.4 GHz Wireless Receiver

• 1 x Braided Charging Cable

• 4 x HE Sample Switches

• 6 x Extra Screws and O-Rings

• 1 x Switch Puller

• 1 x Keycap Puller

• 1 x Screwdriver

• 1 x Quick Start Booklet

Prebuilt Only

• 4 x macOS Alternate Keycaps
   

Note: Barebones keyboards do not include a full set of switches or keycaps.

Getting Started (Prebuilt)

System Requirements

• Available USB-A port

• Windows 10+, macOS 10.11 or later

• [Optional] Bluetooth Compatibility (Wireless Only)

Plug & Play

First, connect the USB-C end of the included cable to your keyboard. Then, plug the USB-A end into an open port on your computer. Your system will automatically recognize the device and install the necessary drivers for basic operation (Windows Only).

Glorious CORE 2.1 Software

Glorious CORE 2.1 is essential for enabling Hall Effect features on GMMK 3 PRO HE keyboards. It also keeps your firmware up to date for peak performance and future functionality, while allowing customization like lighting adjustments, key remapping, and more.

Getting Started (Barebones)

System Requirements

• Available USB-A port

• Windows 10+, macOS 10.11 or later

• [Optional] Bluetooth Compatibility (Wireless Only)
 

Plug & Play

First, connect the USB-C end of the included cable to your keyboard. Then, plug the USB-A end into an open port on your computer. Your system will automatically recognize the device and install the necessary drivers for basic operation (Windows Only).
 

IMPORTANT: Run the Switch Calibration Tool

Any mechanical switches you install in your GMMK 3 PRO HE keyboard will not register an input until you download Glorious CORE 2.1 and run the switch calibration tool. 

1. Download and run Glorious CORE 2.1

2. Make sure your GMMK 3 PRO HE keyboard is plugged in.

3. Click on the keyboard when it appears on the home screen.

4. Click the “Performance” tab.

5. Run the Calibration Tool and follow the on-screen instructions.

If you decide to swap switches down the line, mechanical switches (MX) will require this process to function. We recommend this process for magnetic (HE) switches to ensure peak performance with HE features.

Glorious CORE 2.1 Software

Glorious CORE 2.1 is essential for enabling Hall Effect features on GMMK 3 PRO HE keyboards. It also keeps your firmware up to date for peak performance and future functionality, while allowing customization like lighting adjustments, key remapping, and more.

How to Connect Wirelessly (Wireless Only)

To Connect via 2.4GHz Wireless

• Ensure your device is powered on and the connection toggle switch, near the charging port, is set to “2.4.”

• Plug the included 2.4GHz USB-A wireless receiver into an open port on your device.

To Enter Bluetooth Pairing Mode

• Ensure your device is powered on and the connection toggle switch, near the charging port, is set to “BT.”

• Press the following button combo to send your device into Bluetooth pairing mode, indicated by a flashing blue badge.

  • 65%: FN + K

  • 75%: FN + ‘

  • Full Size (100%): FN + ‘

• Go to Bluetooth settings on your compatible device to find and pair your GMMK 3.
   
  For more in-depth pairing instructions, please refer to the Wireless Connection How-to Guide on pairing multiple devices, disconnecting from devices, and more.

Using the Rotary Knob

• Rotating the knob clockwise raises your device’s volume.

• Rotating counterclockwise lowers volume. 

• Pressing the knob once toggles between muting and unmuting your device’s sound.

• Double-tapping the knob cycles through the keyboard’s 3 customizable layers.

Customizing Functions: The knob’s functions and keyboard’s layers are customizable via Glorious CORE 2.1.

Switching Between Windows & macOS Functions

On the backside of the GMMK 3 PRO HE near the USB port is an Operating System Toggle Switch that lets you instantly change the keyboard’s bottom row functions to match either Windows or macOS. 

• For Windows (Default): Flip the switch to the left, and the device will use the bottom row inputs that match the standard Windows layout.

• For macOS: Flip the switch to the right, and the device will use the bottom row inputs that match the standard macOS layout.

Switching Between Keyboard Profiles (Wired Only)

3 custom profiles can be saved to the GMMK 3 PRO HE. On the backside of the board, near the USB port, is a Profile Switch with three positions. Each corresponds to the respective profile they activate.

• For Profile 1 (Default): Flip the switch to the far left position.

• For Profile 2: Flip the switch to the middle position.

• For Profile 3: Flip the switch to the far right position.

Customizing Profiles: Profiles can be customized via Glorious CORE 2.1. 

Useful Key Combinations for 65%

Lighting Control:

• Combo: Fn + Z
  Effect: Cycle through active RGB zone

• Combo: Fn + X
  Effect: Cycle through colors for current effect (if applicable)

• Combo: Fn + C
  Effect: Decrease lighting effect speed (If applicable)

• Combo: Fn + V
  Effect: Increase lighting effect speed (If applicable)

• Combo: Fn + Left
  Effect: Previous lighting effect

• Combo: Fn + Right
  Effect: Next lighting effect

• Combo: Fn + Up
  Effect: Cycle brightness up

• Combo: Fn + Down
  Effect: Cycle brightness down

Media Control (Windows Only):

• Combo: Fn + B
  Effect: Mute

• Combo: Fn + N
  Effect: Volume down

• Combo: Fn + M
  Effect: Volume up

• Combo: Fn + ,
  Effect: Previous Track

• Combo: Fn + .
  Effect: Play / Pause

• Combo: Fn + /
  Effect: Next Track

System Control:

• Combo: Fn + U
  Effect: Scroll Lock (Windows Only)

• Combo: Fn + Win
  Effect: Enable/disable Windows key (Windows Only)

• Combo: Fn + Backspace
  Effect: Del

• Combo: Fn + O
  Effect: Insert

• Combo: Fn + P
  Effect: Printscreen

• Combo: Fn + Page Up
  Effect: End

• Combo: Fn + Page Down
  Effect: Home

Special Functions:

• Combo: Fn + Shift + Esc
  Effect: ~

• Combo: Fn + Esc
  Effect: `

Default Layer 3 Combinations:

• Combo: Fn + Alt + Up
  Effect: Cycle layers up

• Combo: Fn + Alt + Down
  Effect: Cycle layers down

• Combo: Fn + Alt + Left
  Effect: Cycle profiles down

• Combo: Fn + Alt + Right
  Effect: Cycle profiles up

Permanent Combination:

• Combo: Fn + Esc then 1+3+5
  Effect: Reset device to default Glorious Firmware

Useful Key Combinations for 75% & Full Size (100%)

Lighting Control:

• Combo: Fn + Z
  Effect: Cycle through active RGB zone

• Combo: Fn + X
  Effect: Cycle through colors for current effect (if applicable)

• Combo: Fn + C
  Effect: Decrease lighting effect speed (if applicable)

• Combo: Fn + V
  Effect: Increase lighting effect speed (if applicable)

• Combo: Fn + Up
  Effect: Cycle brightness up

• Combo: Fn + Down
  Effect: Cycle brightness down

• Combo: Fn + Left
  Effect: Previous lighting effect

• Combo: Fn + Right
  Effect: Next lighting effect

Media Control (Windows Only):

• Combo: Fn + F4
  Effect: Media Player

• Combo: Fn + F5
  Effect: Previous Track

• Combo: Fn + F6
  Effect: Next Track

• Combo: Fn + F7
  Effect: Play / Pause

• Combo: Fn + F8
  Effect: Stop

• Combo: Fn + F9
  Effect: Mute

• Combo: Fn + F10
  Effect: Volume down

• Combo: Fn + F11
  Effect: Volume up

System Control:

• Combo: Fn + Win
  Effect: Enable/disable Windows key (Windows Only)

• Combo: Fn + End
  Effect: Home

• Combo: Fn + F1
  Effect: My Computer

• Combo: Fn + F2
  Effect: Web Browser

• Combo: Fn + F3
  Effect: Calculator

• Combo: Fn + F12
  Effect: Print Screen

Default Layer 3 Combinations:

• Combo: Fn + Alt + Up
  Effect: Cycle layers up

• Combo: Fn + Alt + Down
  Effect: Cycle layers down

• Combo: Fn + Alt + Left
  Effect: Cycle profiles down

• Combo: Fn + Alt + Right
  Effect: Cycle profiles up

Permanent Combination:

• Combo: Fn + Esc then F1 + F3 + F5
  Effect: Reset device to default Glorious Firmware

How-To Build Guides

Click a how-to guide below for step-by-step instructions on how to customize your GMMK 3 PRO HE’s look, sound, and feel to your exact preference. 

• How to Change Keycaps

• How to Swap Switches

• How to Change the Badge & Knob

• How to Change Top & Bottom Cases

• How to Change Switch Plates

• How to Change Modular Gaskets

Hall Effect & 8,000Hz Polling Setup Guides

Click a how-to guide below for step-by-step instructions on how to enable and fine-tune your GMMK 3 PRO HE’s hall effect features.

• How to Setup Rapid Trigger & Customizable Actuation

• How to Setup 4:1 Dynamic Keystroke, Mod Tap & Toggle Key

• How to Enable 8,000Hz Polling (Windows Only)

Technical Specifications (Wired)

Technical Specifications (Wireless)

Support & Warranty Information

Support

Questions or concerns regarding your Glorious keyboard can be directed to our support team.
Note that Glorious is unable to offer comprehensive support for third party firmware or parts (switches, keycaps, stabilizers, etc.) purchased from other companies.