PCM2704 USB DAC Decoder Sound Card Board, USB Input to S/PDIF Digital & 3.5mm Analog Audio Output, External USB Audio Decoder Module for Desktop PC DIY Audio Project

This PCM2704 USB DAC decoder board functions as an external USB sound card for desktop computers. Using the mature PCM2704 decoding chip, it receives digital audio signal through USB input and outputs both S/PDIF digital signal and 3.5mm analog audio signal, offering clean audio performance for music playback, video and multimedia applications.

Two independent audio output options meet different usage demands. The S/PDIF digital port can link to external digital amplifiers or advanced decoders for pure digital transmission. The 3.5mm analog jack supports direct connection with headphones, earphones and active speakers for instant analog audio listening.

Power is supplied entirely via USB bus from your computer. No separate DC adapter is required, simplifying wiring for DIY builds. It comes as a bare printed circuit board without outer casing, perfect for audio hobbyists to build custom sound devices, repair faulty onboard motherboard audio or complete chassis internal audio modification.

Simply plug the USB connector into your PC. Most mainstream Windows operating systems will detect the audio hardware automatically without complicated driver setup. It can substitute broken onboard motherboard sound chips for daily desktop audio work.

Important notice: This is a bare circuit board, static protection should be observed during handling and installation. It does not include enclosure or accessory cables. Please confirm your computer supports standard USB audio devices before purchase to ensure normal operation.