Fosi Audio
Fosi Audio K5 Pro Gaming DAC & Headphone Amp
Best For: Budget PC audio and mic
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A compact USB desktop DAC with separate headphone and microphone sockets plus bass and treble knobs.
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Product Overview
The Fosi K5 Pro is a practical lower-cost option for a wired PC gaming setup. Its microphone works over USB; optical and coaxial connections carry playback audio only. A headset with a combined plug needs the appropriate splitter. The RCA outputs are for powered speakers or another amplifier, not passive speakers. This is the Fosi Audio K5 Pro, a different product from FiiO models.
Key Features
- Inputs: USB-C, optical, coaxial; 3.5mm microphone
- Headphone outputs: 3.5mm single-ended
- Line outputs: RCA
Technical Specifications
| Type | Desktop gaming DAC / headphone amp |
| Inputs | USB-C, optical, coaxial; 3.5mm microphone |
| Headphone outputs | 3.5mm single-ended |
| Line outputs | RCA |
| Bluetooth | No |
| Power supply | 5V USB |
| USB audio | Up to 24-bit / 96kHz |
| Optical/coaxial audio | Up to 24-bit / 192kHz |
Research Sources
Selected from published specifications; not a hands-on review.
Pros
- Separate microphone input for USB PC use
- Physical bass and treble controls
Cons
- No balanced headphone output or Bluetooth
- Microphone unavailable over optical/coaxial
Price & Availability Disclaimer: Catalog source last checked on September 5, 2026. Confirm the exact model and specifications with the manufacturer. Retailer prices and stock levels can change. The price, availability, shipping terms, taxes, returns, and warranty terms shown by the external retailer at the time of purchase will govern the sale.