The Bitzie is instantly recognised by the vast majority of operating systems on connection, and with the addition of a free software player that you can obtain online (such as Foobar 2000 for Windows), you will be "up and running" in minutes, not hours, days or never. The Bitzie USB DAC isn't just a USB DAC, it's also a "sound card" great for those who have a S/PDIF only DAC, but who also want to play their music from USB. It has both coax and optical outputs. Remember, software music players will play all your music files no matter what the sampling frequency or number of bits are - therefore you can hear them all with the Bitzie!