Fiio KB3 Mechanical Keyboard

The Fiio KB3 Audio is a mechanical keyboard designed for users who want both quality typing and integrated high-fidelity audio playback. It suits audiophiles who also value a comfortable and customizable typing experience. This keyboard is ideal for those who want a single device combining a DAC (digital-to-analog converter) with a mechanical keyboard, especially if they use headphones frequently and appreciate audio clarity alongside daily productivity.

Key Features

• Integrated dual CS43131 DACs deliver high-resolution audio up to 32bit/384kHz PCM and DSD256, providing headphone output comparable to a desktop amplifier.
• Two headphone outputs, 3.5mm single-ended and 4.4mm balanced, support a wide range of headphones and connection preferences.
• Hot-swappable keys allow easy switch replacement without soldering, enabling users to customize typing feel with linear, tactile, or clicky switches.
• Gasket-mounted design cushions keystrokes, reducing typing fatigue during long sessions.
• Dual OS support ensures compatibility with Windows and Mac systems for versatile use.

Typing Experience

The keyboard ships with Gateron G Pro 3.0 yellow switches, which are smooth, silent linear switches suited for office environments and shared spaces. The gasket-mounted design softens keypress impact, making typing quieter and more comfortable. Users who want to experiment can swap switches easily thanks to the hot-swappable feature.

Connectivity and Versions

The KB3 is available in wired and wireless editions. The wired version includes the full HiFi audio functionality with DAC and headphone outputs, suitable for users prioritizing audio quality. The wireless version omits the DAC and headphone jacks, focusing on a cleaner setup with essential charging ports and longer battery life. Both versions connect via USB Type-C and offer Bluetooth support on the wireless model.

Trade-offs

• The wireless edition lacks the integrated DAC and headphone outputs, so it does not provide the high-fidelity audio experience of the wired model.
• The keyboard uses linear switches by default, which may not suit users who prefer tactile or clicky feedback without swapping switches.
• Unknown firmware customization options or advanced key remapping features.