IN NEW CONDITION: USB Audio Interface (24-bit/ 192kHz) Sound Card. User Manuel Conects microphones, instruments, speakers headphones to a computer, acting as a higher-quality, more flexible replacement for a standard PC sound card. Core functions

• Analog-to-digital conversion (recording) — converts microphone and instrument signals into digital audio your computer and DAW can record.
• Digital-to-analog conversion (playback) — converts audio from the computer back into analog to drive monitors and headphones.
• Preamps and gain control — built-in mic preamps supply the correct level and clean power to condenser mics.
• Routing and monitoring — direct monitoring, multiple outputs, headphone mixes and sometimes built-in DSP (effects/latency reduction) let you monitor with low latency and route audio between devices. Typical connections and key specs
• Inputs: XLR mic inputs (with phantom power), 1/4" instrument (Hi-Z) inputs, line-level TRS; some units include digital inputs (S/PDIF, ADAT) for expansion.
• Outputs: stereo line outs for monitors, one or more headphone outputs, sometimes balanced TRS or TRS main outs.
• Sample rate / bit depth: common specs are 44.1–192 kHz and 24-bit; higher specs improve headroom and fidelity for pro work.
• I/O count: from 2-in/2-out for solo musicians/podcasters up to dozens of channels for studios.
• Build and converters: converter and preamp quality significantly affect sound; better components cost more but yield cleaner, lower-noise results. Who needs one and common uses
• Home musicians and producers — multi-track recording of guitars, vocals, MIDI instruments and mixing in a DAW.
• Podcasters and streamers — cleaner mic capture, headphone monitoring and simple routing for voice and system audio.
• Live-streamed performance/remote collaboration — low-latency monitoring, multiple mics/instruments and reliable USB/Thunderbolt connectivity. Better playback — higher-quality DACs than onboard sound improve monitor/headphone output for mixing and listening.