Wireless mechanical keyboard Keychron K1X-A3 Ultra-slim RGB Backlit, wireless connectivity, compact layout

Keychron K1 QMK Wireless Mechanical Keyboard (Version 6) (US ANSI Layout) is an ultra-slim wireless mechanical keyboard designed for compact desktop setups. The K1X-A3 model features low-profile mechanical switches, RGB backlighting, and multiple wireless connection options (Bluetooth and 2.4 GHz RF) plus wired USB-C support. Its slim housing and compact layout reduce desk clutter while providing a comfortable typing experience and basic gaming capability.

Advantages

The keyboard combines a low-profile mechanical key feel with adjustable RGB backlight and three connection modes (Bluetooth, 2.4 GHz radio, and USB-C). It is lightweight and portable, has a rechargeable lithium-ion polymer battery, and uses a standard US ANSI key layout for broad software compatibility. The slim dimensions (346 x 119 x 25.16 mm) make it suitable for space-conscious users.

Suitable for

• Everyday typing and office work
• Light to moderate gaming
• Compact or portable desktop setups
• Users who prefer low-profile mechanical switches

Key specifications

• Model: K1X-A3
• Layout: US ANSI (English)
• Connectivity: Bluetooth, 2.4 GHz RF, USB-C wired
• Backlight: RGB adjustable
• Battery: Rechargeable lithium-ion polymer
• Dimensions: 346 x 119 x 25.16 mm
• Net weight: 0.596 kg
• Color: Black

How to use

Charge the keyboard using the supplied USB-C cable before first use. Switch between Bluetooth, 2.4 GHz RF dongle, and wired USB-C modes using the keyboard’s mode selector or key combination as described in the Keychron manual. Pair the keyboard with a device over Bluetooth or plug in the 2.4 GHz dongle for a low-latency wireless connection. Adjust RGB lighting and other QMK-configurable functions via the keyboard shortcuts or QMK firmware tools.

Recommendations

For reliable wireless performance, keep the 2.4 GHz dongle within direct line of sight of the keyboard when possible, and recharge the battery regularly to maintain uninterrupted use. Use USB-C connection for extended gaming sessions to avoid latency concerns.