Singxer F-1 XMOS USB Audio Digital Interface I2s XU208 Module DSD256 DOP Crystek CCHD-575 _ - AliExpress Mobile
XMOS intros USB-specific starter kit
Douk Audio U2 XMOS XU208 Digital Interface, USB to TOSLINK Coaxial/Optical Audio Adapter, for DAC/Preamp/Amplifier, Support PCM & DSD64 (Upgrade Version): Amazon.com: Industrial & Scientific