Fosi Audio C3 USB Gaming DAC/Amp Sound Card

Genuine & Brand-New
Free Shipping · Ships from China
1-Year Warranty
45-Day Returns

$145.99 USD

Shipping calculated at checkout.

Title Black

The Fosi Audio C3 is a USB gaming DAC/amp sound card that pairs an XMOS XU316 USB interface with a CS43131 DAC/amp chip driving headphones. It suits PC gamers and anyone tired of noisy motherboard audio, and it is small enough to travel with a laptop, handling music as well as footsteps.

Who the Fosi Audio C3 is for

PC gamers: It is aimed at gaming, and it works just as well for music as it does for footsteps.
Anyone fed up with motherboard audio: It moves the conversion outside the PC chassis, away from the electrical noise inside the case.
Laptop users on the move: It is small enough to pack with a laptop as a travel headphone source.

Fosi Audio C3 key specs

Type: External USB sound card (DAC and headphone amp)
USB interface: XMOS XU316
DAC/amp chip: CS43131
Use: PC gaming and music
Color: Black

Genuine Fosi Audio stock, 1-year warranty, 45-day returns.

Fosi Audio C3 vs similar options

vs SMSL DS20: Built on the same CS43131 chip, but SMSL pitches the DS20 as a phone-or-laptop dongle for IEMs and efficient headphones; pick the C3 if PC gaming is the main job.
vs FiiO KA17: Swaps the CS43131 for dual ES9069Q DACs with THX AAA 78+ amps, and FiiO aims it at full-size headphones that need real power; the C3 is the gaming-focused option.

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Buying from TonePier

Is this unit genuine?

Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.

Where does my order ship from, and how long does it take?

Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.

What if it isn't for me?

You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.

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