---
product_id: 766961481
title: "​Douk Audio U2 USB to SPDIF Converter: Digital Interface - Optical/Coaxial Hi-Res Audio Adapter for PC/Phones & DAC Systems (XMOS XU316 Chip)​​"
brand: "douk audio"
price: "€ 3.43"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.es/products/766961481-douk-audio-u2-usb-to-spdif-converter-digital-interface-optical
store_origin: ES
region: Spain
---

# Real-time LED format & sample rate 24-bit/192kHz Hi-Res PCM & DSD64 Dual USB-C & USB-A plug-and-play ​Douk Audio U2 USB to SPDIF Converter: Digital Interface - Optical/Coaxial Hi-Res Audio Adapter for PC/Phones & DAC Systems (XMOS XU316 Chip)​​

**Brand:** douk audio
**Price:** € 3.43
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your digital audio game—hear every detail, lose nothing.

## Quick Answers

- **What is this?** ​Douk Audio U2 USB to SPDIF Converter: Digital Interface - Optical/Coaxial Hi-Res Audio Adapter for PC/Phones & DAC Systems (XMOS XU316 Chip)​​ by douk audio
- **How much does it cost?** € 3.43 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/766961481-douk-audio-u2-usb-to-spdif-converter-digital-interface-optical)

## Best For

- douk audio enthusiasts

## Why This Product

- Trusted douk audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Pocket-sized and ultra-lightweight design fits effortlessly into any desktop or portable Hi-Fi setup without clutter.
- • **Instant Format Feedback:** Built-in LED indicators keep you in the know with real-time PCM/DSD and sampling rate display—bit-perfect playback guaranteed.
- • **Audiophile-Grade Clarity:** Experience pristine lossless USB to S/PDIF conversion with zero latency—your music, exactly as intended.
- • **Future-Proof Connectivity:** Includes dual-head USB cable (USB-C & USB-A) plus OTG support for on-the-go audiophiles craving high-res digital output anywhere.
- • **Seamless Multi-Device Compatibility:** Plug-and-play with PCs, Macs, Android, iOS, and tablets—no drivers needed for most OS, just pure sound on demand.

## Overview

The Douk Audio U2 is a compact, high-fidelity USB to S/PDIF converter featuring the advanced XMOS XU316 chipset. It supports up to 24-bit/192kHz PCM and DSD64 audio formats, delivering lossless, ultra-low jitter digital output via optical and coaxial interfaces. Designed for effortless plug-and-play use across Windows, Mac, Android, and iOS devices, it includes real-time LED indicators for format and sample rate, making it an essential upgrade for audiophiles and professionals seeking pristine digital audio conversion in a sleek, portable form factor.

## Description

Warm tips 1. The U2 supports OTG and comes with an OTG-compatible USB cable for direct connection to OTG-enabled phones. For iPhones or iPads with a Lightning port, a high-current camera kit is required. Newer models with a Type-C port can use the included cable directly. 2. The U2 only supports 2.0 channel stereo audio. Multichannel formats such as 5.1, 7.1, or Dolby formats are not supported. 3. Please install the required driver and files from the included USB drive, and follow the instructions or video guide to set up your player properly. Parameters: * Brand: Douk Audio * Model: U2 * Audio input: USB Type-C * Audio output: Coaxial / Optical * USB chip: XMOS XU316 * Max. sampling rate supported: PCM: 44.1kHz-192kHz / 16Bit-24Bit DSD: DOP DSD64 * Operation systems PC-USB supported: W10 / W11 / Mac OS / Android / iOS Win7 / Win8 / Linux (Cannot guarantee 100% compatible) * THD+N: 0.000008% * Working voltage: DC 5V * Dimensions (W*D*H): 40*52*20mm / 1.57*2.05*0.79in * Package dimensions (W*D*H): 170*120*50mm / 6.69*4.72*1.97in * Net weight: 45g / 0.1lb * Package weight: 170g / 0.37lb System Driver Requirements * For Windows 10 and Above: Driver-free for PCM; Requires driver for DSD * For MacOS: Driver-free * For Win 7/8: Requires driver for PCM/DSD * For Android: Driver-free * For iOS: Driver-free * For Linux: Driver-free Packing list * U2 Digital Interface ×1 * Optical Cable ×1 * USB-C to USB-A/USB-C Cable ×1 * User Manual ×1

Review: Simple plug and play - This little package has all you need to connect your computer or a USB C iPad or iPhone to a digital receiver. It offers a super clear signal. No power source is needed, just plug it into your device. It's nice to get lossless audio straight into your speakers. It seems well built. Functionally, it's pretty basic, just a straight connection for your device. There's no volume control nor eq. One thing, though, it seems to cut out when my iPad is bumped occasionally. I can't definitively say that is due to my iPad or the device, but that could be a concern if you're trying to use your iPad while listening to music.
Review: Easy install on Apple Mac Mini Tahoe - Excellent packaging. Awesome laminated instruction manual. Easy install on Mac Mini Tahoe. Easy setup in Sound settings. Sound output is excellent on my VMAI sound bar. I would buy again. BTW, I plugged the USB cable into a powered USB hub.

## Features

- Lossless USB to S/PDIF Conversion: Instantly convert audio from your PC, laptop, phone or tablet into simultaneous optical and coaxial S/PDIF outputs with zero signal loss and no added latency. Ideal for feeding high-quality digital audio to DACs, amplifiers, and home theater receivers that lack USB inputs.
- Hi-Res XMOS XU316 Chipset: Enjoy true high-fidelity sound with support for PCM up to 24-bit/192kHz and DSD64 (DoP). The advanced XMOS XU316 DDC chipset provides ultra-low jitter and a cleaner digital signal, capturing every detail in your music—perfect for audiophiles and high-end Hi-Fi systems.
- Plug-and-Play Convenience: No drivers are required on modern operating systems. Simply connect the included dual-head USB cable (USB-C and USB-A) and enjoy instant audio output. Fully OTG-ready, the U2 works seamlessly with phones and tablets for effortless use on the go.
- Real-Time Format Indicator: Built-in LED indicators clearly display whether the audio is PCM or DSD and show the current sampling rate. This real-time feedback lets you confirm your audio format at a glance, ensuring bit-perfect playback and giving you peace of mind that you’re hearing exactly what was intended.
- Compact, Hi-Fi Friendly Design: Pocket-sized at only 1.6×2.0 inches and 45g, the U2 slips easily into any setup without adding clutter. Its lightweight, space-saving build is ideal for crowded desks or small shelves, making it perfect for desktop Hi-Fi rigs and portable listening stations without sacrificing performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FJRQP894 |
| Best Sellers Rank | #353,269 in Electronics ( See Top 100 in Electronics ) #468 in Digital-Analog Converters #693 in Signal Converters |
| Brand | Douk Audio |
| Brand Name | Douk Audio |
| Customer Reviews | 3.5 out of 5 stars 5 Reviews |
| Manufacturer | Douk Audio |
| Maximum Supply Voltage | 5 Volts (DC) |
| Minimum Supply Voltage | 5 Volts (DC) |
| Model | SUC-U2-AU |
| Number of Channels | 2 |
| Number of Pins | 25 |
| Part Number | SUC-U2 |

## Product Details

- **Brand:** Douk Audio
- **Maximum Supply Voltage:** 5 Volts (DC)
- **Minimum Supply Voltage:** 5 Volts (DC)
- **Number of Channels:** 2
- **Number of Pins:** 25

## Images

![​Douk Audio U2 USB to SPDIF Converter: Digital Interface - Optical/Coaxial Hi-Res Audio Adapter for PC/Phones & DAC Systems (XMOS XU316 Chip)​​ - Image 1](https://m.media-amazon.com/images/I/61NBvrBGHtL.jpg)
![​Douk Audio U2 USB to SPDIF Converter: Digital Interface - Optical/Coaxial Hi-Res Audio Adapter for PC/Phones & DAC Systems (XMOS XU316 Chip)​​ - Image 2](https://m.media-amazon.com/images/I/719Fl3tvtZL.jpg)
![​Douk Audio U2 USB to SPDIF Converter: Digital Interface - Optical/Coaxial Hi-Res Audio Adapter for PC/Phones & DAC Systems (XMOS XU316 Chip)​​ - Image 3](https://m.media-amazon.com/images/I/71dJWx9eWjL.jpg)
![​Douk Audio U2 USB to SPDIF Converter: Digital Interface - Optical/Coaxial Hi-Res Audio Adapter for PC/Phones & DAC Systems (XMOS XU316 Chip)​​ - Image 4](https://m.media-amazon.com/images/I/81uL15yqEeL.jpg)
![​Douk Audio U2 USB to SPDIF Converter: Digital Interface - Optical/Coaxial Hi-Res Audio Adapter for PC/Phones & DAC Systems (XMOS XU316 Chip)​​ - Image 5](https://m.media-amazon.com/images/I/81qgtXdnoCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Simple plug and play
*by L***Y on December 19, 2025*

This little package has all you need to connect your computer or a USB C iPad or iPhone to a digital receiver. It offers a super clear signal. No power source is needed, just plug it into your device. It's nice to get lossless audio straight into your speakers. It seems well built. Functionally, it's pretty basic, just a straight connection for your device. There's no volume control nor eq. One thing, though, it seems to cut out when my iPad is bumped occasionally. I can't definitively say that is due to my iPad or the device, but that could be a concern if you're trying to use your iPad while listening to music.

### ⭐⭐⭐⭐⭐ Easy install on Apple Mac Mini Tahoe
*by A***T on September 30, 2025*

Excellent packaging. Awesome laminated instruction manual. Easy install on Mac Mini Tahoe. Easy setup in Sound settings. Sound output is excellent on my VMAI sound bar. I would buy again. BTW, I plugged the USB cable into a powered USB hub.

### ⭐⭐ No actual volume control, unlike claims
*by B***K on October 9, 2025*

Works, but doesn't support volume control on Windows or macOS. High quality sound, but whats the point if your receiving end doesn't support above 192. Just get the simpler USB SPDIF Adapter for 1/3 of the price.

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---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-07-09*