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GMMK PRO Product Overview

GMMK PRO Features:

GMMK PRO is an ultra-premium, gasket-mounted 75% layout keyboard built for enthusiasts, gamers, and professionals.

  • 75% keyboard layout

  • Removable USB-C Cable

  • Gasket Mounted

  • Default Aluminum Plate w/ Additional Plate Materials Available

  • Sound Dampening Material Under Switch Plate and PCB

Polling Rate

  • 125 Hz, 250 Hz, 500 Hz, 1000 Hz.

  • The polling rate is saved onto the firmware

  • 3 available profiles for users to save their settings

    • Each profile has 3 layers

  • Each layer can have different key assignments (including macros)

  • The lighting effect for each layer will be the same as the effect for the profile the layer belongs to.

  • Profile size: 60 KB per profile (20 per layer)

Programmable Rotary Encoder

  • Fully Programmable Knob (clickable)

  • Controls Volume & Media by default

  • Unlimited rotation in either direction

QMK and VIA Compatible

  • Compatible with QMK and VIA opensource firmware

  • GMMK PRO ships with default firmware

  • Also compatible with easy-to-use Glorious Core software

5-Pin Modular PCB

  • 5-Pin south-facing PCB

  • Fully modular, hot-swappable to easily add and remove your favorite switches

  • Supports plate and PCB mounted switches

  • Supports clip-in or screw-in stabilizers


  • Right Shift key is 1.75u

  • Spacebar is 6.25u

  • Bottom row is 1u

  • Standard left side

Regarding Durock / Zeal / 3rd party stabilizers: most 3rd party stabilizers should fit fine on the aluminum/pc/brass plates. However, there is a tolerance issue on certain brands such as Durock. Aluminum and PC will fit fine, but require some force. For brass, you must file off a bit from the side stab housing for them to fit. We are of course looking into solutions to make these stabs fit better for future batches as well.

CNC Aluminum Case

  • Individually machined and engraved.

  • Aesthetic high-profile frame.

  • High-quality Aluminum (6062).

  • Comes in Black Slate or White Ice (Anodized like the GMMK 1).

  • Weight: ~3.5 lbs or 1.6kg.

  • Dimensions: 332mm x 135mm.

  • Typing angle is 6° and has no case legs.

  • Has 4x rubber feet at the bottom.

  • EVA foam under the PCB


  • 16.8 Million RGB colors

  • Per key RGB Lighting

  • Multiple color modes and animations

  • Distinct side lighting

  • Includes RGB and a diffuser to help blend the LED lights for a soft glow

  • The caps lock key is implemented with the side lights. No dedicated indicator


  • Premium USB C cable (detachable)

  • Length: 6ft (Black cable for Slate Black or White cable for White Ice)

  • The PRO's USB C port has a separate PCB which is connected by a wire to the main PCB

Included in Packaging

  • Basic switch puller
  • USB Cable
  • Extra Gaskets


  • 2 Year Warranty

GMMK PRO Key Sizes