# Fosi Audio K5 Pro
- **Product Page**: https://chi-fi.top/dac/fosi-audio-k5-pro
- **Category**: Headphone DACs
- **Brand**: Fosi Audio
- **Price**: from $54 USD
- **Summary**: Desk box for a gaming headset on a PC or PS5
- **AliExpress**: https://s.click.aliexpress.com/e/_c3UEviHh

## Pros
- Headphone jack and mic jack on the front, so a wired gaming headset plugs straight in
- USB, optical and coaxial inputs, plus RCA out for powered speakers
- Bass and treble knobs as well as volume
- Plenty of rated power: 500 mW at 32 Ω (maker's figure)

## Cons
- No gain switch, and reviewers hear hiss with sensitive earphones
- One reviewer's first unit failed and the replacement's optical input didn't work
- The same reviewer found less volume headroom than the power rating suggests
- 3.5 mm headphone jack only, no 6.35 mm or balanced output

## Specifications
- **Outputs**: 3.5 mm
- **Max sample rate**: 192 kHz
- **Max bit depth**: 24 bit
- **Output power at 32 Ω**: 500 mW
- **Platforms**: PC, Mac, PlayStation, Switch
- **Weight**: 251 g

## Details & Specifications
The Fosi Audio K5 Pro is a small desktop DAC and headphone amp aimed at gaming. A wired headset plugs into the front, with separate headphone and mic jacks, and it connects to a PC, Mac, PS5 or Switch over USB, or takes optical and coaxial input from a TV or console. Knobs on the front set the volume, bass and treble, and the RCA outputs on the back can feed powered speakers. It runs from a 5 V USB-C supply.

There's no gain switch, and reviewers hear hiss with sensitive earphones at higher volume; it suits full-size headsets better. One reviewer's first unit failed to work on a PS4 and didn't detect their mic, and the replacement's optical input didn't work, while the same reviewer found it quieter than its power rating suggests. Fosi doesn't list Xbox among supported devices.

- DAC chip not named by the maker; Texas Instruments NE5532 op-amp
- 500 mW at 32 Ω, 80 mW at 300 Ω (maker's figures); for headphones from 16 to 300 Ω
- Inputs: USB-C (up to 24-bit/96 kHz), optical and coaxial (up to 24-bit/192 kHz)
- Outputs: 3.5 mm headphone jack, RCA line out
- 3.5 mm mic input on the front
- Volume, bass and treble knobs
- Works with PC, Mac, PS5 and Switch (maker's list)
- Powered by 5 V over USB-C
- 112 × 95 × 30 mm, 251 g

> Picks come from research (reviews, specs, community consensus), not hands-on testing. Prices are USD "from" prices and may be out of date. Buy links are affiliate links.