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

• 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.

System Driver Requirements For Windows 10 and Above: Driver-free for PCM; Requires driver for DSD For macOS: Driver-free For Windows 7/8: Requires driver for PCM/DSD For Android: Driver-free For iOS: Driver-free For Linux: Driver-free 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 Packing list * 1* U2 Digital Interface * 1* Optical Cable * 1* USB-C to USB-A/USB-C Cable * 1* User Manual