Thesycon is the common driver provider for products that have XMOS chips.
The manufacture then just rebrand it.
"The concept of our driver is that ASIO always is preferred over Windows sound devices. That means if an application plays sound through Windows sound devices and ASIO is started with a different sample rate than this application is interrupted because ASIO can change the sample rate. If ASIO is started with the same sample rate than the audio data of the application and ASIO is mixed.
WASAPI exclusive mode is a mechanism of Windows. In shared mode multiple applications can play at the same time and Windows mixes this signals. In exclusive, only one application uses the sound device and takes control over the sample rate. No other application can use the sound device during this time. But this is independent from ASIO. ASIO is still preferred over Windows sound devices used in exclusive mode. This is because the driver can't detect if the Windows sound device is used in exclusive mode or not."
Source:
https://www.matrix-digi.com/forums/showthread.php?tid=28
More infos:
https://www.thesycon.de/eng/usb_audiodriver.shtml