Koolertron 23-key programmable macro keyboard (red axis RGB black)

23-key programmable macro keypad

This compact mechanical keypad provides 23 individually programmable keys for left-hand gaming or productivity shortcuts. It targets users who want dedicated macro triggers separate from a standard 104-key layout. The unit uses red linear switches and features per-key RGB backlighting in a black chassis.

Japanese-market voltage and language constraints

The hardware is built for the Japanese 100 V electrical standard and the supplier recommends using a transformer for other regions. All on-device interface language and documentation are fixed in Japanese and cannot be changed. These regional specifications limit plug-and-play use outside Japan without extra preparation.

On-board storage with four profile layers

Settings are saved directly in the built-in MCU across four switchable layers, so no host software is required after initial configuration. The dedicated programming utility is Japanese-language only, which can complicate the first setup for non-Japanese readers. Macro capacity reaches 792 commands split between normal and delayed macro slots.