Most computers are not built for sound and surely not high audio quality sound. The Baetis is the first to built with sound in mind first. The Baetis team listened to the sound of different mother boards and decided which to use first. There is not sound card in the Baetis like a computer. The sound comes directly off the mother board to a BNC out connection. The Baetis has a fan inside, but again, they chose carefully which to use and you can't hear it unless you are a foot away. They measured the sound decibels from the unit to be sure it would not be distracting from the listening seat like some computers are. On the back you have toslink, USB and BNC outs from the unit. Computers don't have these unless you install them custom. The Baetis does have a solid state internal drive but has 6 USB connections on the back and 2 on the front with six being 3.0. There is also WiFi capability if you want or an ethernet if you want a hard internet connection. I put my Baetis against my friend's computer audio systems anytime and think I will have the better sounding unit since its goal is good sound first and a good computer second.