We know the new, and more expensive, V-link 192 uses the XMOS RISC processor, but I'm not clear if it has any from of galvantic isolation, the original V-Link had neither.
We also know the Stello U3 is based around the XMOS RISC processor and has galvantic isolation, but what is the HIface Two design based on? Their web page(s) don't give much way.
Perhaps Linux users can get some more info about the device with the terminal commands:
cat /proc/asound/xxxx/stream0 (where xxxx must be replaced by the Hiface device name, whatever that might be)
M2Tech M2Tech USB Audio 2.0 at usb-0000:00:1a.7-3, high speed : USB Audio
Interface = 1
Altset = 1
URBs = 8 [ 8 8 8 8 8 8 8 8 ]
Packet Size = 1024
Momentary freq = 44100 Hz (0x5.8330)
Feedback Format = 16.16
Endpoint: 1 OUT (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000
Data packet interval: 125 us