Douk Audio U2-PRO-FC XMOS XU316 USB DDC Reclocker-Femtosecond Version

Feature

• Upgrade Your USB Digital Link: Convert USB audio from computers, phones and streamers to optical, coaxial and I2S simultaneous outputs, bringing modern sources to DACs, AV receivers and soundbars without USB input. Femtosecond clocking and dedicated USB-C power raise the performance ceiling for more lifelike playback.

• Unlock More with Femto Clocking: Crystek CCHD-957 femtosecond clocking lowers phase noise and jitter beyond standard clocking, bringing firmer imaging, cleaner separation and finer ambience cues. Dedicated USB-C power supports premium or linear supplies, matching precision clocking with an equally serious power foundation.  

• Unleash Hi-Res with XMOS XU316: Asynchronous USB processing handles PCM up to 32-bit/768kHz and DSD512, delivering high-rate audio for capable DACs with greater clarity and stability. I2S carries the highest rates beyond standard S/PDIF bandwidth, keeping your digital front end from becoming the bottleneck.

• Two UAC Modes for More Sources: Choose UAC 1.0 for driver-free USB audio from PS4, PS5 and Switch, or UAC 2.0 for high-rate PCM and DSD from PCs, phones, tablets and streamers. One digital interface adapts to both console compatibility and serious HiFi playback.

• Built for Easier HiFi Integration: Check I2S compatibility quickly with the printed bottom-panel pinout, while five LEDs show PCM/DSD format and sample rate at a glance. The compact aluminum chassis fits neatly beside your DAC or amp, and the included 2-in-1 USB-A/USB-C cable makes more sources easy to connect.  

System Driver Requirements

• For Windows 10 and Above: Driver-free for PCM up to 384kHz; Requires driver for higher sampling rate and 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
• For PS4/PS5/Switch: Driver-free 

Packing List

• 1 × U2-PRO-FC
• 1 × Optical Cable
• 1 × USB-A/C to USB-C Cable
• 1 × User Manual