---
product_id: 729273890
title: "Douk Audio U2 PRO XMOS XU208 Digital Interface,USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter for DAC/Preamplifier/ Amplifier Support PCM&DSD256"
brand: "douk audio"
price: "HK$24"
currency: HKD
in_stock: false
reviews_count: 2
url: https://www.desertcart.hk/products/729273890-douk-audio-u2-pro-xmos-xu208-digital-interface-usb-to
store_origin: HK
region: Hong Kong
---

# 1000 MIPS XMOS XU208 chip - ultra stable & powerful Supports PCM up to 384kHz & DSD256 - pristine audio clarity Simultaneous USB & TOSLINK/Coaxial/HDMI output - ultimate connectivity Douk Audio U2 PRO XMOS XU208 Digital Interface,USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter for DAC/Preamplifier/ Amplifier Support PCM&DSD256

**Brand:** douk audio
**Price:** HK$24
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate Your Audio Game with Pro-Grade Precision and Connectivity

## Quick Answers

- **What is this?** Douk Audio U2 PRO XMOS XU208 Digital Interface,USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter for DAC/Preamplifier/ Amplifier Support PCM&DSD256 by douk audio
- **How much does it cost?** HK$24 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/729273890-douk-audio-u2-pro-xmos-xu208-digital-interface-usb-to)

## 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

- • **Hi-Res Audio Ready:** Experience crystal-clear sound with support for PCM up to 384kHz and DSD256, delivering studio-quality playback every time.
- • **Premium Build Quality:** Crafted with ultra-low noise LDO power supply, gold-plated connectors, and high-grade capacitors to ensure superior signal integrity.
- • **Versatile Multi-Output:** Simultaneously output via USB, TOSLINK optical, coaxial, and HDMI IIS for seamless integration with all your audio gear.
- • **Next-Level Audio Processing:** Harness the power of the XMOS XU208 chip with double the processing speed of previous models for flawless, jitter-free sound.
- • **On-the-Go Power Flexibility:** Power via USB or external 5V DC input from your smartphone charger or power bank—HiFi music anywhere, anytime.

## Overview

The Douk Audio U2 PRO is a cutting-edge digital audio interface featuring the XMOS XU208 chip with 1000 MIPS processing power, supporting high-resolution PCM up to 384kHz and DSD256 formats. It offers simultaneous USB, TOSLINK optical, coaxial, and HDMI IIS outputs, built with premium components for ultra-low noise and stable performance. Compatible with Windows, macOS, Linux, and Android systems, it provides flexible power options for portable high-fidelity audio experiences.

## Description

System Compatibility 1.Need to install driver for 32/64Bit Win 7, Win 8, Win 10 system. Download Ring: https://drive.google.com/drive/folders/1ZjWBDD5Te-a8O64fCstuOKIwGRo766wD 2. Native AC OS 10.6 or later, you can use the system unique driver Also Native Linux with UAC2 compliant kernels can be used with the system proprietary drivers (tested in Ubuntu and Daphile systems based on INTEL X86). 3. In general, the default USB input supports Android 5.0 system, but Android 4.2 and above need a smartphone with OTG function. We recommend using the Hiby player to play DSD music. You need to prepare OTG cable (for Android system) or camera kit for IOS system by yourself.

## Features

- Works well with DAC, preamplifier, power amplifier, or speaker from USB input and TOSLINK optical / coaxial / HDMI 12S output (can output simultaneously) With XMOS XU208 chip solution, 1000 MIPS random access memory is much higher than U8 (500MIPS), more stable than Italian Amanero solution, and coaxial output also supports DSD DOP
- The output interface with DSD ON function requires decoder of DSD ON signal to decode DSD ON. Supports up to 44.1K-384KHz / 16-32Bit sampling rates and DOP DSD256 for better signal processing and high sound quality
- Using high quality components such as ultra-low noise LDO voltage stabilizing power supply, LVDS differential chip, gold-plated coaxial interface, OS-CON solid capacitors, Panasonic FC filtering and decoupling capacitors to ensure better performance
- USB interface can be used as signal input and power input at the same time. In addition, the external DC 5V input (priority) allows you to power from your smartphone charger or mobile battery, so you can easily enjoy HiFi music anytime, anywhere
- System compatible 1.32/64Bit Win 7, Win 8, Win 10 system need to install drivers. Download Ring: https://drive.google.com/drive/folders/1ZjWBDD5Te-a8O64fCstuOKIwGRo766wD 2. Native AC OS 10.6 and above, you can use your system own driver Also Native Linux with UAC2 compliant kernels can be used with the system proprietary drivers (tested in Ubuntu and Daphile systems based on INTEL X86). 3. In general, the default USB input supports Android 5.0 system, but Android 4.2 and above need a smartphone with OTG function. We recommend using the Hiby player to play DSD music. You need to prepare OTG cable (for Android system) or camera kit for IOS system by yourself

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item model number | DZ081 |
| Compatible Devices | laptop, personal computer, tablet |
| Material Type | Copper |

## Product Details

- **Brand:** Douk Audio
- **Maximum Supply Voltage:** 5.25 Volts
- **Minimum Supply Voltage:** 5 Volts (DC)
- **Mounting Type:** Coaxial, Plug Mount
- **Number of Pins:** 4

## Images

![Douk Audio U2 PRO XMOS XU208 Digital Interface,USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter for DAC/Preamplifier/ Amplifier Support PCM&DSD256 - Image 1](https://m.media-amazon.com/images/I/61KhwNljuoL.jpg)
![Douk Audio U2 PRO XMOS XU208 Digital Interface,USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter for DAC/Preamplifier/ Amplifier Support PCM&DSD256 - Image 2](https://m.media-amazon.com/images/I/71ZBwolzFwL.jpg)
![Douk Audio U2 PRO XMOS XU208 Digital Interface,USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter for DAC/Preamplifier/ Amplifier Support PCM&DSD256 - Image 3](https://m.media-amazon.com/images/I/61w8kB7CPdL.jpg)
![Douk Audio U2 PRO XMOS XU208 Digital Interface,USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter for DAC/Preamplifier/ Amplifier Support PCM&DSD256 - Image 4](https://m.media-amazon.com/images/I/716wtiVhjYL.jpg)
![Douk Audio U2 PRO XMOS XU208 Digital Interface,USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter for DAC/Preamplifier/ Amplifier Support PCM&DSD256 - Image 5](https://m.media-amazon.com/images/I/71tQzbUWAoL.jpg)

## Questions & Answers

**Q: Where can I purchase the 5V 2A power supply for this unit, and which one would owners recommend?**
A: If you require a compact/portable power supply for the USB interface, you can use a 5V rechargeable power bank such as this connected via the USB power cable included with the USB interface: https://www.amazon.com/gp/product/B07YBTYX9D/ref=ox_sc_act_title_1?smid=A2XWJAAZM0RYQD&psc=1

**Q: What is the I2s pinout configuration on this?**
A: Hello. Please refer to our last product image. It shows clearly.

**Q: does it support multichannel pcm/asio/dsd?**
A: Hello. It can accept multi-channel input but can only output 2-channel.

**Q: Does the douk u2 audio pro output 384k on spdif if the usb input is 384k? the douk site is vague, but does seem to say that spdif out limit is 192k**
A: Hello. Only the I2S output supports all sampling rate while S/PDIF supports 192KHz and DOP DSD64 at highest

## Customer Reviews

### ⭐ 今一
*by M***I on April 3, 2025*

思った以上に音質が悪いと感じたので、他の製品にした。

### ⭐ 説明不足
*by ち***？ on October 27, 2022*

ウチの環境（windows10）ではfoobarによるDSD再生できませんでしたマニュアルpdfを何回も読み検証しましたが赤いランプが点灯するも音が出ず他の方もレビューしてるように故障品が多いのかもしれませんね後、xmosドライバーに関してですが何やら他社のドライバーが干渉して認識しない事があるとか古いバージョンからインストールしないといけないとの事

## Frequently Bought Together

- Douk Audio U2 PRO XMOS XU208 Digital Interface, USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter, for DAC/Preamp/Amplifier, Support PCM & DSD256
- TOSLINK cable, optical audio cable – 1.64 feet short fiber optic cable for soundbars (TOSLINK to TOSLINK, digital S/PDIF cable, stereo systems/amplifiers/amps, home cinema, Xbox One/PS5) – CableDirect

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-27*