Epomaker has introduced the Luma40, a compact and unconventional mechanical keyboard that continues the company’s efforts to experiment with smaller form factors. Known for developing a wide variety of mechanical, wireless, and Hall-effect keyboards, Epomaker is expanding its low-profile range with a model that blends minimalist design and programmability.
The Luma40 takes compactness to an extreme by offering just 47 keys, pushing the limits of what can be considered a functional everyday keyboard. Its ortholinear layout sets it apart from traditional keyboards, as the keys are arranged in a uniform grid instead of the staggered format found on most keyboards. This configuration may feel unusual at first, but it is known for improving finger travel efficiency and can be customized for different typing styles.
Despite its reduced key count, the Luma40 retains a standard QWERTY layout in its default configuration. Users can fully customize the layout through the VIA web app, which allows for key remapping, macro creation, and lighting adjustments. The keyboard’s open-source firmware support ensures long-term flexibility for both casual users and those who prefer advanced configurations.
The Luma40 features Kailh White Rain low-profile switches, known for their smooth linear feel and balanced 50 gf actuation force. The switches use a full POM construction, which provides durability and a soft keypress response. These are mounted on a PC plate housed inside a CNC-machined aluminum case, combining lightweight portability with a solid structure.
Epomaker includes transparent PC keycaps with screen-printed legends using the LAK profile, designed for consistent height and easy swapping across all keys. The keyboard supports full RGB lighting with north-facing LEDs, allowing colors to shine through clearly, although the screen-printed legends may wear over time compared to more durable double-shot PBT alternatives.

Powering the keyboard is a 1,450 mAh battery, rated for around 7 hours of use with full RGB brightness or up to 75 hours without lighting. The Luma40 supports Bluetooth and 2.4 GHz wireless connectivity, along with a USB Type-C wired mode for uninterrupted use.
Unlike many of Epomaker’s recent keyboards that rely on gasket mounting, the Luma40 employs a cushioned tray mount, which helps absorb typing impact and maintain a balanced sound profile. The board’s 20.8 mm front height and 0-degree typing angle give it a flat and compact appearance. Epomaker has omitted stabilizers for larger keys, instead opting for dual 2U space bars, simplifying the structure without compromising usability.

Visually, the Luma40 follows a minimalist approach, featuring a single color finish with a silver strap placed at the top left corner—an element inspired by Epomaker’s earlier TH40 model and Wooting’s compact keyboards.
Priced at $115.99, with a launch discount reducing it to $98.59, the Luma40 is available now on Epomaker’s official store. Its compact ortholinear layout, low-profile design, and open customization make it an appealing option for users seeking a portable keyboard that supports flexible configuration without unnecessary extras.
The Epomaker Luma40 highlights the company’s focus on compact and customizable designs, reflecting a growing interest among keyboard enthusiasts in smaller, more efficient layouts that still maintain mechanical performance.
