This Reality PC was envisioned to be affordable without making compromises on sound. It includes both digital and analog outputs and a MidiQuest 2Port/SE box for connection to your controller keyboard.
Just plug in your other gear and go. You’ll need a monitor. After that, all you have to do is flip on the power switch to start using Reality. You can use Synergy to control Reality with the mouse and keyboard of another PC. A digital optical cable is recommended for inputing into your main PC or other gear.
Here are the analog and digital outputs on the back of the unit (just below the network card).
The unit has all of the features you need to get going with Reality quickly.