Fosi Audio C3 Gaming External Sound Card for PC, USB DAC AMP with Footstep Enhancement, 7.1 Surround and Audio Equalizer, Portable Headphone Interface Desktop

Feature1. StepSense™ Footstep Radar — Track Enemies Beyond Your VisionPowered by Fosi Audio's proprietary StepSense™ technology, the C3 detects and enhances in-game footstep cues in real time while preserving the natural balance of gunfire, explosions, and ambient sound. Pinpoint enemy direction and distance without cranking the volume—turn every footfall into actionable intel.2. Hardware-Level 7.1 Spatial Audio — True Immersion, Zero HassleWith native 7.1 multichannel input and spatial reconstruction powered by HRTF/HRIR-based algorithms, the C3 delivers a 360° surround experience through standard stereo output. Plug-and-play with no drivers required—just pure, directional audio in titles like Delta Force and Forza Horizon 5.3. HiFi-Grade DAC Performance — Every Detail, Crystal ClearBuilt around the flagship CS43131 DAC, the C3 supports up to 32-bit/384kHz PCM and DSD256 with an ultra-low THD+N of just 0.0004%. The dedicated headphone amp pumps out 320mW × 2 at 32Ω, effortlessly driving gaming headsets from 16Ω to 300Ω and revealing subtle in-game cues others miss.4. AI Mic Noise Cancellation — Callouts That Cut ThroughAdvanced AI voice processing suppresses keyboard clatter and background noise with only 50ms of latency. An independent mic volume slider and real-time sidetone monitoring keep your comms crisp and your squad coordinated, even in the heat of battle.5. Desktop-First Minimalist Design — Form Meets FunctionThe CNC-machined aluminum unibody sits at a 5° ergonomic tilt, with tactile sliders and buttons laid out for intuitive, no-look control. Powered by a single USB-C connection and compact enough for any setup, it keeps your desk clean and your focus locked on the game.Specification Chipset:XMOS XU316+CS43131+TPA6120*2Max Sampling Rate:UAC 2.0 PCM 32bit 384kHz/DSD256UAC 1.0 PCM 16bit 48kHzOPT PCM 24bit 192kHzCOAX PCM 24bit 192kHz Input:Coaxial, Optical, USB-C (power/data),3.5mm Microphone Input Output:3.5 mm Headphone Jack, RCA Line OutputInput Voltage DC 5VHeadphone Impedance 16-300ΩHeadphone Output Power L+R≥320mW+320mW (32Ω/THD+N＜1%)RCA Output Level ≥2VrmsSNR (A-weighted) 3.5mm: 123dB、RCA: 124dBTHD+N (A-weighted) 3.5mm: 0.0004%、RCA: 0.0005%Dynamic Range 3.5mm: 123dB、RCA: 124dBNoise Floor(A-weighted) ≤3μVFrequency Response 20Hz-20kHz（±0.06dB）