Compare HMX GB40 vs Keychron Q9 Differences Side by Side

This comparison is for users committed to the 40% form factor but torn between connectivity and customization. The HMX GB40 offers Bluetooth and a wireless dongle for cable-free use, while the Keychron Q9 is a wired-only board focused on extensive programmability and a robust construction. The decision hinges on whether you prioritize the freedom of wireless or the extensive modding and firmware support of a dedicated custom keyboard.

Model
	64	95	Select a keyboard to compare
Rating	0.0 stars (0 reviews)	4.5 stars (9 reviews)
Purchase Options
Main differences	Released in 2025 Built with the ANSI layout standard Offers Normal ergonomics Supports Bluetooth, Wired, Wireless connectivity Features ABS, PBT keycaps	Released in 2022 Has Linear, Tactile, Clicky switch options Built with the ANSI, ISO layout standard Offers Split Spacebar ergonomics Comes with a knob Compatible with both Mac and Windows Supports QMK firmware Supports VIA configuration Includes screw-in stabilizers Supports Wired, Wired only connectivity Runs at a 1000 Hz polling rate Weighs about 1050 g Sized at 20 x 94 x 326 mm Features PBT keycaps
Score	Scores Performance: 58.8 Build Quality: 68.6 Productivity: 56.8 Customizability: 57.7 Portability: 84.6	Scores Performance: 65.1 Build Quality: 91 Productivity: 94.4 Customizability: 97.1 Portability: 70.3
Name	Name HMX GB40	Name Keychron Q9
Release year	Release year 2025	Release year 2022
Switch Options	Switch Options -	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 40%	Layout Size 40%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI, ISO
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Split Spacebar
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, Wired, Wireless	Connection Wired, Wired only
Polling Rate	Polling Rate -	Polling Rate 1000 Hz
Battery capacity	Battery capacity -	Battery capacity -
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, South-face	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum	Case Material Aluminum
Keycaps Material	Keycaps Material ABS, PBT	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions 20 x 94 x 326 mm
Weight	Weight -	Weight 1050g

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Pros and Trade-offs

Your primary need dictates the choice. If you must be untethered, the HMX GB40 is the only option here with its dual wireless modes. If you plan to stay at a single desk and value the ability to tweak every aspect of your typing experience, from firmware to physical layout, the Keychron Q9 is the superior and more future-proof platform. Consider the Q9's weight and wired nature as commitments to a stationary setup.

HMX GB40

+Offers both Bluetooth 5.2 and a 2.4GHz wireless dongle for flexible connectivity.
+Includes sound-dampening Poron plate foam and IXPE padding out of the box.
+Comes with a coiled USB-C cable, switch puller, and decorative joystick accent.
+Available in both aluminum and polycarbonate case material options.
+Hot-swappable PCB supports both 3-pin and 5-pin switches.

−User reviews indicate noticeable input delay for gaming.
−Keycaps are pad-printed, which may be less durable than double-shot legends.
−Lacks the extensive firmware customization options of QMK/VIA.
−No split spacebar or ISO layout options are mentioned.

Keychron Q9

+Fully supports open-source QMK and VIA firmware for deep customization.
+Offers a barebones kit option and a split spacebar layout (Plus version).
+Built with a full CNC aluminum case, steel plate, and screw-in PCB stabilizers.
+Includes a programmable knob on specific configurations for creative workflows.
+Specifies a 1000 Hz polling rate and uses a powerful ARM-based MCU.

−Wired-only connectivity, with no wireless or Bluetooth option.
−Heavy at 1050g, reducing portability.
−The vendor description notes top cases have sharper corners, which may be less comfortable for some.
−More complex initial setup required for layer programming compared to simpler boards.

Which Keyboard Is Better for Your Needs?

The Keychron Q9 is the clear choice for stationary, customization-focused tasks like programming, modding, and content creation, thanks to its robust firmware and build. The HMX GB40 wins for mobile and office scenarios where wireless connectivity and simpler setup are paramount. For gaming, the Q9's specified performance metrics give it an edge, though both use the challenging 40% layout.

GamingKeychron Q9

•The Keychron Q9 has a specified 1000 Hz polling rate for lower latency.
•User reviews for the HMX GB40 mention noticeable delay in fast-paced games.
•The Q9's heavier 1050g aluminum build provides more stability during intense use.

OfficeHMX GB40

•The HMX GB40 supports Bluetooth and a wireless dongle for easy connection to multiple devices.
•Its lighter weight and wireless design make it easier to move around a desk or between workspaces.
•The included coiled cable and simpler setup may be preferable in a shared or multi-device environment.

ProgrammingKeychron Q9

•The Keychron Q9 offers extensive QMK and VIA support for creating complex macros and layers.
•It supports both ANSI and ISO layouts, offering more flexibility for international developers.
•The split spacebar option on the Plus version allows for more thumb-key programming.

TravelHMX GB40

•The HMX GB40 is wireless, eliminating the need to carry or manage a cable.
•It is implied to be lighter than the 1050g Keychron Q9, based on the lack of a specified weight.
•Bluetooth connectivity allows for use with laptops and tablets without occupying a USB port.

ModdingKeychron Q9

•The Keychron Q9 is explicitly offered in a barebones kit version without switches and keycaps.
•It features screw-in PCB stabilizers and supports third-party stabilizers like Cherry or Durock.
•It has extensive documented support for QMK/VIA firmware and a programmable knob on some versions.

Content CreationKeychron Q9

•The Keychron Q9's programmable knob can be mapped to functions like zoom, brush size, or volume.
•QMK/VIA support allows for creating specialized shortcuts and macros for editing software.
•The manufacturer states the 1000 Hz polling rate makes latency 'hardly noticeable' for precise inputs.