Early days in the comparison of this compared to the USB converter built into my DAC. This converter is powered by the USB cable.
This converter works very well. It's musical and gets more information from the DAC than the original USB daughter board.
there should be a detailed info regards used crystals... how accurate they are... well, anyway this is a great converter... it changes your music experience completely... it is much better. tested it with rpi 4 volumio and HEGEL H80 amp coax 1 input - works great !