​Douk Audio U2 USB to SPDIF Converter: Digital Interface Reclocker - Optical/Coaxial Hi-Res Audio Adapter for PC/Phones & DAC Systems (XMOS XU316 Chip)​​

Highlights

• Lossless USB to S/PDIF Converter: Convert USB signals from PC, laptops, phones, tablets, and Raspberry Pi etc. to optical/coaxial outputs simultaneously with zero loss and no latency. Ideal for DACs, digital amplifiers, or home theater systems that only support S/PDIF input.
• XMOS XU316 Chipset for Hi-Res Audio: U2 supports up to 24bit/192kHz PCM and DSD64 (DOP) playback. Enjoy lower jitter, cleaner signals, and rich audio detail—perfect for high-end music systems and audiophiles.
• Plug-and-Play Simplicity: No driver needed for PCM playback on Windows 10+ and macOS. Includes a dual-head Type-A/Type-C to Type-C cable for easy connection, fully OTG-ready for phones and instantly usable.
• Real-Time Format Indicators: The built-in sampling rate indicator clearly displays PCM/DSD status and sampling rate, letting you instantly verify your audio format for accurate, bit-perfect playback and peace of mind.
• Compact Design for Seamless Integration: Despite its powerful digital processing, the U2 features a lightweight and space-saving design. Ideal for HiFi desktop audio systems where space and performance both matter.

Is this the right pick for you?

This Douk Audio U2 USB to SPDIF Converter is perfect for audiophiles and enthusiasts who need a reliable way to connect their high-resolution audio sources like PCs, laptops, or phones directly to digital amplifiers or home theater systems that only accept S/PDIF inputs. Its XMOS XU316 chipset ensures that you can enjoy lossless 24bit/192kHz PCM and DSD64 playback with minimal jitter and cleaner signals, making it an excellent choice for those who demand the very best in audio quality. The U2 is designed to be as user-friendly as possible. It requires no drivers on Windows 10+, macOS, Android, or iOS devices, which means you can start enjoying your music right away without any hassle. The included dual-head Type-A/Type-C to Type-C cable makes setup a breeze, and it’s fully OTG-ready for phones, allowing you to connect directly with just the right adapter. However, it's important to note that the U2 only supports stereo audio and does not handle multichannel formats like 5.1 or 7.1 surround sound. Before making your purchase, ensure you have all the necessary cables and adapters on hand, as the included Type-C cable might not be compatible with all devices. Additionally, the converter’s compact design makes it ideal for integrating seamlessly into a HiFi desktop audio setup where space is at a premium.

Frequently asked questions