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FiiO KB3 HiFi Audio Mechanical Keyboard


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Where bottoming out meets rocking out

Meet the FiiO KB3 HIFI Audio Mechanical Keyboard—the crossroads where audiophiles and mech keyboard enthusiasts meet. With features like gasket-mounted design and 32bit/384kHzPCM audio playback, this keyboard-DAC combo is a one-stop music and typing solution. 

High-quality audio: Hear the difference

Dual CS43131 DACs lie at the heart of the KB3, elevating it from a run-of-the-mill keyboard to a bona fide music machine. Coupled with a 550mW high output power, it rivals a 550mW desktop amp, ensuring that your headphones sound loud and clear. 

Diverse connectivity: Plug and play

Thanks to 3.5mm SE and 4.4mm balanced dual headphone jacks, enjoy wide compatibility with various headphones and a plug-and-play experience. 

Gasket-mounted design: Comfort in every click

Shock-absorbing typing provides a comfortable, cushioned feel with each keystroke, making long typing sessions a breeze. 

Hot-swappable keys: Customize your typing

Flexibility is at your fingertips with hot-swappable switches. Swap between clicky, linear, and tactile switches with ease, making this keyboard a stellar choice for experimenters and tinkerers alike. 

Dual OS support: Versatile and productive

Whether you're a Windows fan or a Mac user, the KB3 has you covered. Its dual OS support ensures unimpeded productivity across different operating systems, making it a flexible choice no matter your setup.

Gateron G Pro 3.0 yellow switches: Ready to perform

The KB3 ships with Gateron G Pro 3.0 yellow switches, a set of smooth and silent linear keys. These all-rounders are great for gaming, typing, and coding. And because they're linear, they're perfect for the office and shared spaces.

Choose your style: Wired or Wireless Editions

HiFi Wired Edition

  • HiFi Functionality: Enjoy the full HiFi audio experience with integrated DACs.
  • Complete Inputs/Outputs: Equipped with all necessary ports for comprehensive connectivity.

Wireless Edition: Freedom and Flexibility

  • No HiFi Functionality: Focuses on essential charging ports, offering a clutter-free setup. Does not include DAC or headphone outputs.
  • Color Choices: Available in classic black or elegant silver case options.

Product highlights

  • Gasket-mounted design for a comfortable feel
  • Hot-swappable keys for customization
  • Dual OS support for Windows and Mac
  • Dual CS43131 DACs for superior audio quality
  • 550mW high output power, comparable to desktop amps
  • 3.5mm SE and 4.4mm balanced headphone jacks
  • Patented design, integrating music listening and typing


  • Keyboard switch: Gateron G Pro 3.0 yellow switches; Limited Founders Edition with Kailh Deep Sea Whale switches
  • Dimensions: About 329mm×140mm×43.5mm (12.95in×5.51in×1.71in)
  • Weight: Wired edition about 1060g (2.34lbs), Wireless edition about 1115g (2.46lbs)
  • Battery life (wireless edition): Up to 18 hours with RGB light on, 500 hours with RGB light off, 2000+ hours in standby
  • Input: USB Type-C
  • Output: 3.5mm single-ended, 4.4mm balanced headphone out
  • DAC: CIRRUS LOGIC CS43131 x 2
  • Op amp: SGMICRO SGM8262 x 2
  • Audio decoding: Up to PCM384kHz/32bit, DSD256
  • Output power: 3.5 SE - ≥170mW+170mW, 4.4 balanced - ≥550mW+550mW
  • Signal-to-noise ratio: ≥122dB
  • Noise floor: About 2.5uV
  • THD+N: <0.0005%
  • USB chip: SAVITECH SA9312L
  • OS supported: Android/iOS/Windows/Mac
  • Color options: Midnight black, Morning silver
  • Gateron G Pro 3.0 Yellow Switches
    • Series: 3pin/5pin
    • Total travel: 4.0mm max.
    • Pre-travel: 2.0±0.6mm
    • Operation force: 50g
    • Bottom-out force: 67g
    • Spring: 15.4mm
    • Operation life: Up to 100M cycles

What’s included

  • Keyboard x 1
  • USB-A to Type-C cable (about 1.6m) x 1
  • Keycap puller x 1
  • Warranty card x 1
  • Quick start guide x 1

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