Fosi Audio

Fosi Audio K5 Pro Gaming DAC/ Headphone Amplifier


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A new era for gamers 

Meet the Fosi Audio K5 Pro—your gaming sessions will never be the same. This upgraded DAC and headphone amplifier brings a new dimension of audio performance to your gaming rig or music setup. With compatibility ranging from PS5 to smartphones, and boasting features like microphone support and high-fidelity sound, the K5 Pro is a true game-changer.

Seamless integration with your digital world

The K5 Pro is a versatile companion for any device—PCs, MACs, smartphones, and even your Nintendo Switch. Acting as an external sound card, it elevates your audio experience, whether you're competing against your friends or enjoying your favorite tracks.

Crystal-clear audio—microphone included

Dive deeper into your games and music with the K5 Pro's enhanced audio clarity. The addition of a microphone function means you can communicate with crystal-clear precision, making it an ideal choice for competitive gamers. 

Connectivity that covers all bases

With its unique 2-in-1 USB Type C interface, the K5 Pro simplifies your setup by serving both as a charging port and audio input. Plus, with a range of outputs including RCA and 3.5mm AUX, connecting to amplifiers, powered speakers, or high-impedance headphones is a breeze.

The heart of sound

At the core of the K5 Pro is the Texas Instruments NE5532 op-amp chip, chosen for its low noise and pristine sound reproduction. The result is a soundstage so clean and expansive, it's like hearing your favorite songs for the first time.

Product highlights

  • Upgraded DAC amp combo with microphone support
  • Compatible with a wide range of devices including PS5, PC, MAC, and smartphones
  • Converts USB Type C, Optical, Coaxial signals to 3.5mm AUX and RCA
  • Drives headphones ranging from 16 Ohm to 300 Ohm
  • Features Texas Instruments NE5532 op-amp for superior sound quality
  • Low distortion and great dynamic range for immersive audio experiences


  • Output power: 1000mW @16Ω, 500mW@32Ω, 300mW@64Ω, 150mW@128Ω, 80mW@300Ω
  • Headphone impedance: 16Ω - 300Ω
  • Input type: USB, optical, coaxial, 3.5mm microphone
  • Output type: 3.5mm microphone, RCA
  • USB sampling rate: 16bit/44.1kHz - 24bit/96kHz
  • Optical/coaxial sampling rate: 16bit/44.1kHz - 24bit/191kHz
  • THD: <0.003%
  • SNR: ≥110dB
  • Device dimensions: 4.4” x 3.7” x 1.2”
  • Net weight: 0.55lbs
  • Power supply interface: USB Type-C
  • Power supply: 5V

What’s included

  • Fosi Audio K5 Pro x1
  • USB Type-C Cable x1
  • Optical cable x1
  • Headset microphone Two-in-one adapter cable x1
  • User manual x1

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