Fosi Audio / C3 Gaming DAC

The "C3" is a gaming DAC that supports high-resolution audio and features AI-powered noise cancellation and microphone monitoring.

[StepSense: Footstep Enhancement for FPS Games]
- StepSense amplifies critical sounds—such as footsteps and movement—to help you pinpoint enemy locations in FPS games. It highlights essential audio cues while minimizing interference from other in-game sounds, delivering a clearer and more immersive gaming experience on PC, PS5, and Switch.

[Hi-Res Gaming Audio Experience]
- Equipped with the XMOS XU316 and CS43131, this device delivers high-resolution, crystal-clear game audio. With excellent sound separation and a low-distortion design, it faithfully reproduces subtle details—from reloading sounds and ambient noise to distant effects—deepening your immersion in FPS gameplay.

[USB Gaming Sound Card with 7.1ch Virtual Surround & 8-Band EQ]
- Features 7.1ch virtual surround sound and an 8-band equalizer, accessible via a web browser. It includes built-in presets optimized for FPS games and allows for the creation of custom profiles tailored to your preferences. No driver installation is required; simply plug it in to optimize your audio on PC, PS5, or Switch.

[AI Noise Cancellation & Mic Monitoring]
- AI-powered noise cancellation reduces background sounds—such as keyboard clicks, fan noise, and ambient chatter—by up to 40dB, ensuring clear voice chat. The mic monitoring feature lets you hear your own voice in real-time, helping you better control your volume and speech during gaming, live streaming, or voice calls.

[Multi-Platform Compatibility & Plug-and-Play Design]
- Designed for plug-and-play use via a USB Type-C connection. It supports USB, optical (OPT), and coaxial (COAX) inputs, along with 3.5mm and RCA outputs, making it compatible with a wide range of devices, including PCs, game consoles, headsets, and active speakers. Supports UAC 1.0 mode, allowing for use with game consoles such as the PS5 and Nintendo Switch.

■ Chipset: XMOS XU316 + CS4313 + TPA6120 x 2
■ Maximum Sampling Rate:
・UAC 2.0: PCM 384kHz/32-bit, DSD256
・UAC 1.0: PCM 48kHz/16-bit
・OPT (Optical): PCM 192kHz/24-bit
・COAX (Coaxial): PCM 192kHz/24-bit
■ Supported Headphone Impedance: 16–300Ω
■ Inputs: Coaxial, Optical, USB-C (power/data transmission), 3.5mm microphone jack
■ Outputs: 3.5mm jack, RCA jacks
■ Firmware Updates:
Visit https://cc.fosiaudio.com, select your device, and you can update the C3 firmware online via the web application.

■ Input Voltage: DC 5V
■ Web Application Link: https://cc.fosiaudio.com
■ USB Driver:
A driver installation is required for native DSD playback; otherwise, no driver installation is necessary.
Windows 7/8/8.1/10/11 (driver required)
Mac OS X 10.6 or later, Linux (no driver required)