Mechanical keyboard Keychron K1X-A4 80% QWERTY English, USB + Bluetooth, 87 keys, LED backlight, Grey

Keychron K1X-A4 is an 80% low-profile mechanical keyboard with an English QWERTY layout and 87 keys. It provides both wired USB and Bluetooth connectivity for flexible use across desktop and mobile devices. The keyboard comes in a compact grey design, features LED backlighting and a slim profile that combines mechanical keyfeel with a space-saving Tenkeyless form factor.

Advantages

The K1X-A4 offers dual connectivity via USB and Bluetooth, allowing quick switching between wired and wireless modes. Its low-profile mechanical switches deliver a tactile and responsive typing experience while keeping the keyboard thin. LED backlighting improves visibility in low-light environments. The compact 80% layout saves desk space while retaining essential keys for efficient typing and general computing.

Suitable for

Key specifications

How to use

Connect the keyboard to a computer or device using the supplied USB cable for wired operation and firmware-level polling performance. For wireless use, pair the keyboard via Bluetooth following the device’s Bluetooth pairing procedure and switch to the desired device profile. Adjust the LED backlight brightness or modes using the keyboard’s built-in key combinations. Use the Launcher or QMK tooling where available to remap keys, customize layers, and create macros for workflows that require additional personalization.

Recommendations

For stable performance during gaming or latency-sensitive tasks, prefer wired USB mode. Use Bluetooth mode for convenience when working across multiple devices. Keep keycaps and the keyboard surface free from dust and liquid; clean gently with a dry or slightly damp microfiber cloth. If available, use the Keychron Launcher or QMK firmware to configure separate keymaps for macOS and Windows and to tailor backlight settings to your environment.