It is most commonly found as the "OEM" driver provided by manufacturers like Denafrips , Weiss Engineering , and others who use XMOS or similar USB receivers in their hardware.
Despite its performance, Thesycon ASIO has drawbacks: thesycon asio driver
For professional audio recording, monitoring, and synthesis, latencies below 10ms are mandatory. To solve this, Steinberg developed the ASIO protocol. However, hardware manufacturers often lack the in-house expertise to write stable, low-level USB drivers. This is where Thesycon steps in, providing a licensable ASIO driver solution used by brands like RME, Focusrite, Universal Audio, and many others. It is most commonly found as the "OEM"