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  4. Epomaker TH40 Review: A Feature-Packed Compact Keyboard

Epomaker TH40 Review: A Feature-Packed Compact Keyboard

2025 12/24
Gadget Keyboard
Epomaker Review
Mar 26, 2026
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Epomaker TH40 レビュー
JP EN FR ES 中 한 DE 繁 VI ID ไท हि PT

The Epomaker TH40 reviewed here is a noteworthy mechanical keyboard that, despite its compact 40% layout, is packed with high customizability and a variety of features.

It is a device filled with many attractions, including a gasket-mount design, hot-swap compatibility, and abundant connection options.
In this article, I will provide a thorough review covering everything from its basic specifications to the actual user experience, as well as its pros and cons!

Author of this article: “Mr. Gadget”
  • Studied under Masatoshi Ono, a million-selling singer who has performed at Kohaku Uta Gassen
  • Experience supervising for Ameba Choice and the web media Picky’s
  • Individual member of the Word of Mouth Marketing Association
Nice to meet you!

I received the product from Epomaker for the purpose of writing this article. (Titles omitted)
In accordance with my content creation policy, I strive to provide an impartial review.

PR
Epomaker TH40
Epomaker TH40
AmazonRakutenOfficial siteAliExpress
  • Listed prices may differ from actual prices, so please be sure to confirm the final price at the time of purchase.
    Prices are particularly likely to change during sales, so please check before buying.
Epomaker TH40
Overall Rating
( 4.5 )
Pros
  • Comfortable typing feel with gasket mount
  • Abundant connection options
  • Hot-swap compatible
  • Compact and space-saving
  • PBT keycaps and RGB lighting
  • VIA software support
Cons
  • Requires getting used to the 40% layout
Recommended for:
  • Those looking for a compact and portable keyboard
  • Those who care about typing comfort
  • Those who want to switch freely between wireless and wired connections
  • Minimalists who want to keep their desk tidy
Table of Contents

Basic Information

Specifications

ItemDetails
ModelEPOMAKER TH40
Number of keys44 keys (40% layout)
FrameworkGasket mount
Case materialABS plastic
Plate materialPC (polycarbonate)
Stabilizer typePlate-mounted stabilizers
PCB type3-pin / 5-pin hot-swap compatible
ConnectivityUSB Type-C wired / Bluetooth / 2.4GHz wireless
Anti-ghostingNKRO
Light orientationSouth-facing
Battery capacity3000mAh
Polling rateWired & 2.4GHz mode (1000Hz), Bluetooth (125Hz)
Compatible OSWindows / macOS
Dimensions258 x 97 x 35mm
WeightApprox. 0.5kg
Specifications of the Epomaker TH40
Ms.gadget

It’s compact yet multifunctional; you can really feel how easy it is to use!

Actual weight of the Epomaker TH40
The actual weight was 445.3g
The Epomaker TH40 supports VIA
It also supports VIA
Fn key combinations for the Epomaker TH40

Accessories and Appearance

Accessories for the Epomaker TH40
Accessories for the Epomaker TH40
  • USB Type-A to C cable
  • 2.4GHz wireless dongle
  • Key switches
  • Keycap & key switch puller
  • User manual
Epomaker TH40 during Bluetooth connection
This is how it appears when connected via Bluetooth
Front of the Epomaker TH40 box
Full length of the Epomaker TH40
This is what the unit looks like
Back of the Epomaker TH40
You can raise the stands
Back of the Epomaker TH40 box
Bottom of the Epomaker TH40
Careful construction with non-slip pads at the four corners
Side view of the Epomaker TH40
This is how it looks when propped up
Mr.gadget

The black and yellow stylish design looks cool, doesn’t it!

Ms.gadget

It’s honeybee-colored (lol)

PR
Epomaker TH40
Epomaker TH40
AmazonRakutenOfficial siteAliExpress
  • Listed prices may differ from actual prices, so please be sure to confirm the final price at the time of purchase.
    Prices are particularly likely to change during sales, so please check before buying.

Epomaker TH40 Review

Gasket-mount typing feel

Epomaker TH40

One of the biggest features of the Epomaker TH40 is its “gasket mount.”

This is a mechanism where gaskets installed inside the keyboard absorb vibrations during typing, realizing a quiet and soft typing feel.
It is less tiring even after long typing sessions, and its high silence means you can use it with peace of mind even in quiet environments like cafes or offices.

Mr.gadget

I definitely want those who like a “soft typing feel” to try this out!

The variety of connectivity is super convenient!

Connection options for the Epomaker TH40
You can switch connection methods on the side of the unit
Epomaker TH40
The design of the dongle itself is also well-crafted

The “Epomaker TH40” comes with three connection methods: USB Type-C wired connection, Bluetooth 5.0, and 2.4GHz wireless dongle.

Because of this, it can easily connect not just to desktop PCs, but also to mobile devices like tablets and smartphones.
This is an extremely convenient specification for those who want to set up a wireless environment.

Mr.gadget

For people who use multiple devices while switching between them, this is a major appeal!

Free customization with hot-swapping

The TH40 adopts a hot-swap PCB that supports both 3-pin and 5-pin switches, making switch replacement very easy. You can change to your preferred switches without using tools, so even those new to customization can feel at ease.

Mr.gadget

The fact that it can be easily customized is a great point!

PR
Epomaker TH40
Epomaker TH40
AmazonRakutenOfficial siteAliExpress
  • Listed prices may differ from actual prices, so please be sure to confirm the final price at the time of purchase.
    Prices are particularly likely to change during sales, so please check before buying.

A layout that is easy to use despite being compact

Size comparison of the Epomaker TH40
Size comparison with an iPhone 15 Pro

Because 40% layout keyboards have fewer keys, some might think they “seem hard to use.”
However, the TH40 is equipped with programmable layer functions, allowing you to freely assign the keys you need.

For example, by setting arrow keys and function keys to a layer, you can achieve space-saving while maintaining the normal operational feel. Using the VIA software, even beginners can easily change the settings.

Ms.gadget

It takes a little getting used to at first, but if you master it, your work efficiency will jump significantly!

Mr.gadget

Well, it is tough until you get used to it though

Reliable wireless use with a large-capacity battery

Since it has a built-in 3000mAh battery, it can be used for a long time even when connected wirelessly.
It is perfect for working on the go in 2.4GHz or Bluetooth modes.

Charging is done via USB Type-C, so it is also convenient that you can charge it with the same cable as most other devices.

Mr.gadget

If you are considering wireless operation, this battery performance is quite attractive!

Summary

I felt that the Epomaker TH40 is an excellent keyboard that does not compromise on functionality or comfort while maintaining the space-saving nature of a 40% layout.

Ease of use is pursued in every aspect, such as the soft typing feel of the gasket mount, the abundance of connection options, and the high level of customizability.

Mr.gadget

Well, it takes practice to master it, and the ultra-compact 40% layout is not for everyone

Ms.gadget

All in all, you could say that the Epomaker TH40 is a keyboard that truly shows its worth to those who understand the characteristics of a 40% layout and have the leeway to enjoy customizing it to match their own work environment and usage!

PR
Epomaker TH40
Epomaker TH40
AmazonRakutenOfficial siteAliExpress
  • Listed prices may differ from actual prices, so please be sure to confirm the final price at the time of purchase.
    Prices are particularly likely to change during sales, so please check before buying.
Epomaker TH40
Overall Rating
( 4.5 )
Pros
  • Comfortable typing feel with gasket mount
  • Abundant connection options
  • Hot-swap compatible
  • Compact and space-saving
  • PBT keycaps and RGB lighting
  • VIA software support
Cons
  • Requires getting used to the 40% layout

Recommended for:

  • Those looking for a compact and portable keyboard
  • Those who care about typing comfort
  • Those who want to switch freely between wireless and wired connections
  • Minimalists who want to keep their desk tidy

Thank you for reading until the end!

  • The evaluation in this article is unique to this site.
  • Unless otherwise specified, product prices and information are current as of the time of writing.
  • Please note that this site cannot be held responsible for any inaccuracies in this information.
  • Product and service names mentioned on this site are trademarks of their respective companies.

This article was originally written in Japanese and has been translated.

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