It is a USB key that provides a stereo analog output or digital / optical / tos 16-bit 44.1 or 48Khz.
So plug and play.
Super-displacement "in practice on a pc or mac dpourvu sound card or output numrique on a laptop, a net-book, etc..
No driver, was walking alone. As a cons does not work with a sound card, no software.
It's just a stereo output numrique pocket.
Plug year play, no installation, no driver. Breeze.
The quality is a Intrets numrique equivalent of the hardware in a sophisticated simplissime USB output-optics pocket.
It is for a station costs, for example, audiophile, DJ, commercial representation mechanism, etc. ...
And it's not very expensive, less than 2O, usually they, for his numrique of very good quality.