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Compare HMX GB40 vs Epomaker TH40 Differences Side by Side

This comparison is for users deciding between two feature-rich 40% wireless keyboards. The choice is difficult because both offer gasket mounts, hot-swap PCBs, and tri-mode connectivity, but they diverge on core values. The HMX GB40 emphasizes material quality with its aluminum case and includes more accessories, while the Epomaker TH40 focuses on deep software customization with QMK/VIA support and a split spacebar layout at a more affordable cost.

64
80Retros GB40 40% Wireless Keyboard
-10% off
82
Epomaker TH40

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0.0 (0)
3.9 (52)
  • Released in 2025
  • Offers Normal ergonomics
  • Connects via USB-C
  • Has built-in sound dampening
  • Supports Bluetooth, Wired, Wireless connectivity
  • Made with a Aluminum case
  • Features ABS, PBT keycaps
  • Released in 2024
  • Has Linear switch options
  • Offers Split Spacebar ergonomics
  • Compatible with both Mac and Windows
  • Supports QMK firmware
  • Supports VIA configuration
  • Features N-key rollover
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 3000 mAh battery
  • Weighs about 500 g
  • Sized at 35 x 258 x 97 mm
  • Made with a ABS case
  • Features PBT keycaps
Scores
  • Performance: 58.8
  • Build Quality: 68.6
  • Productivity: 56.8
  • Customizability: 57.7
  • Portability: 84.6
Scores
  • Performance: 73.8
  • Build Quality: 75.4
  • Productivity: 62.5
  • Customizability: 86.1
  • Portability: 84.2
Name
HMX GB40
Name
Epomaker TH40
Release year
2025
Release year
2024
Switch Options
-
Switch Options
Linear
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
40%
Layout Size
40%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Split Spacebar
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
1000 Hz
Battery capacity
-
Battery capacity
3000 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Material
Aluminum
Case Material
ABS
Keycaps Material
ABS, PBT
Keycaps Material
PBT
Dimensions
-
Dimensions
35 x 258 x 97 mm
Weight
-
Weight
500g
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Pros and Trade-offs

Your priority should dictate the choice. If a premium metal build, included accessories, and out-of-the-box aesthetics are most important, the HMX GB40 is the clear pick. If deep software customization, a specified high polling rate for responsiveness, and a lower cost are your main drivers, the Epomaker TH40 offers superior value and capability. Both are competent ultra-compact wireless boards, but they serve different core audiences.

HMX GB40

  • +Offers a premium powder-coated CNC aluminum case option.
  • +Includes more accessories: a coiled USB-C cable, switch puller, keycap puller, wireless dongle, and a joystick knob.
  • +Comes with pre-installed sound dampening foam (Poron plate foam and IXPE switch/bottom padding).
  • +Available in both ABS and PBT keycap material options depending on the color chosen.
  • −Lacks the explicit QMK and VIA firmware support that its competitor offers, with user reviews noting VIA recognition issues.
  • −Vendor descriptions do not specify a polling rate, which may concern performance-sensitive users.
  • −More expensive than the Epomaker TH40.

Epomaker TH40

  • +Explicitly supports QMK and VIA for extensive, user-friendly key remapping and macro programming.
  • +Specifies a 1000Hz polling rate for wired and 2.4GHz wireless modes.
  • +Features a split spacebar layout with a dedicated FN key for potentially easier layer access.
  • +Includes detailed sound-dampening materials: Poron plate foam, an IXPE black switch pad, and bottom Poron foam.
  • +Lower price point than the HMX GB40.
  • −Case is made of ABS plastic, lacking the premium feel of an aluminum construction.
  • −The included keycaps are PBT dye-sublimated, but the listing does not mention included accessories like a coiled cable or puller.
  • −Some user reviews report initial difficulties getting VIA to recognize the keyboard.

Which Keyboard Is Better for Your Needs?

The Epomaker TH40 takes the lead for gaming due to its specified high polling rate and for programming/modding thanks to its robust QMK/VIA software support. The HMX GB40 is favored for content creation, leveraging its aluminum build quality. For office use and travel, the keyboards are evenly matched, both offering the extreme portability and multi-device connectivity inherent to the 40% form factor, with the trade-off of learning complex layers for daily tasks.

GamingEpomaker TH40
  • •The Epomaker TH40 lists a 1000Hz polling rate for wired/2.4G modes, which the HMX GB40's specifications do not mention.
  • •It supports full N-Key Rollover (NKRO) to prevent key conflicts during simultaneous presses.
  • •The manufacturer's description for the TH40 explicitly mentions its suitability for gaming.
OfficeTie
  • •Both support Windows and Mac compatibility.
  • •Both offer tri-mode wireless connectivity (Bluetooth and 2.4GHz) for switching between devices.
  • •The 40% layout for both requires heavy layer use, which may hinder standard office productivity equally.
ProgrammingEpomaker TH40
  • •The Epomaker TH40 explicitly supports QMK and VIA for extensive key remapping and macro programming.
  • •Its split spacebar layout includes a dedicated FN key, potentially offering more accessible layer toggles.
  • •User reviews for the HMX GB40 mention VIA compatibility issues, whereas the TH40 is designed for it.
TravelTie
  • •Both are compact 40% layouts (45 keys for GB40, 44 keys for TH40) and are highly portable.
  • •Both have wireless connectivity with built-in batteries (the TH40 specifies a 3000mAh capacity).
  • •They have similar weights and dimensions, with the TH40 listed at 500g.
ModdingEpomaker TH40
  • •The Epomaker TH40's QMK/VIA support allows for deep firmware-level customization beyond physical changes.
  • •Both have hot-swap PCBs supporting 3-pin and 5-pin switches.
  • •The TH40's product page details its modding-friendly foam layers: Poron plate foam, IXPE switch pad, and bottom Poron foam.
Content CreationHMX GB40
  • •The HMX GB40's aluminum case options may provide a more stable and premium typing feel for long sessions.
  • •It includes a coiled USB-C cable and a joystick knob decoration, offering more aesthetic customization out of the box.
  • •The typing angle is specified as 6°, which may contribute to ergonomics during extended use.

Frequently Asked Questions (FAQ)

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