Yuan Jing Audio - XMOS U8 USB Audio 32Bit / 384KHz USB to I2S Converter Daughter Board LP - USD $39.50
OEM board - I2S over USB Audio
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New Xmos Xu208 U208 Usb To I2s Iis Dsd Converter 384k Xmos Xu208 Usb Digital Interface Module For Dac,amazing Sounding - Home Theater Amplifiers - AliExpress
XMOS 384kHz DXD DSD256 high-quality USB to I2S/DSD/SPDIF PCB