Asynchronous USB 2 DACs

In 2010 the list of USB DACs featuring asynchronous USB and sample rates > 96 kHz consisted of 2 models. Indeed USB DACs with these specs where new.

Today almost all USB DACs do support UAC2 (USB Audio Class 2) and use USB in High Speed mode.
Today’s common sample rate and formats are
PCM: 16 / 24 /32bit with sample rates 44.1, 48, 88.2, 96, 176.4, 192, 352.8 and 384kHz
DSD (over DOP): 64, 128, 256 and 512