L.K.S Audio USB-100 USB Audio Interface I2S-H I2S-E DSD512 PCM384K LPS-25- USB | eBay
PCM2706 USB DAC with S/PDIF and I2S interface from m1l3n on Tindie
Atsam3u1c Xc2c64a Combo384 Usb To I2s Digital Interface Refer To Amanero Usb Iis Support Dsd512 32bit 384k I2s Output For Audio - Home Theater Amplifiers - AliExpress
My USB Convertor - diyparadise
USB to I2S Interface XMOS XU208 32bit 384kHz DSD256 - Audiophonics
CM6631A Digital Interface 24bit/192khz USB to Coaxial Optical Fiber SPDIF I2S Converter DAC Board: Amazon.com: Industrial & Scientific
JLSounds I2SoverUSB and miniDSP MCHStreamer USB-to-I2S boards with W-DAC - nihtila.com