Epomaker TH40

The Epomaker TH40 is a compact 40% mechanical keyboard designed for users who prioritize portability and efficient typing in a minimal layout. It suits programmers, typists, and mobile users who want a small footprint without sacrificing customization or multi-device connectivity. Its tri-mode wireless and wired options support flexible use across different setups.

Key Features

• 40% layout removes number row and arrow keys, reducing size but requiring layer use for some functions.
• Split space bar with an FN key between keys minimizes finger travel, potentially increasing typing speed.
• Full N-Key Rollover allows multiple simultaneous key presses without conflicts, useful for fast typing or gaming.
• Programmable via VIA software with four layers, three customizable, enabling tailored keymaps without frequent software access.
• Dynamic RGB lighting offers various effects that respond to keystrokes, adding visual feedback.

Build and Typing Experience

• Gasket mount design with Poron and IXPE foam reduces keystroke noise and hollow sounds, improving acoustic quality.
• Flex-cut PC plate and plate-mounted stabilizers enhance key feel and reduce rattle.
• ABS plastic case keeps weight low for portability but may feel less sturdy than metal alternatives.

Connectivity

• Supports wired USB-C, Bluetooth, and 2.4GHz wireless modes for easy switching between devices.
• Polling rate is 1000Hz on wired and 2.4GHz, and 125Hz on Bluetooth, which may affect responsiveness in wireless mode.
• 3000mAh battery supports wireless use, but exact battery life is unknown.

Compatibility and Layout

• Compatible with Windows and Mac operating systems.
• 40% layout lacks dedicated arrow keys and function row, which may slow workflows for users needing those keys frequently.
• Supports 3/5-pin hot-swappable switches, allowing easy switch replacement without soldering.

Trade-offs

• Small layout requires learning layer functions, which may not suit users who prefer traditional full or tenkeyless layouts.
• ABS case material is less durable and may show wear faster than metal cases.
• Bluetooth polling rate is lower, potentially less ideal for latency-sensitive tasks.