You're looking at a Fostex #3010 Patchbay designed to help you hook-up and route up to 16 stereo devices or 32 mono sources. This is a very quiet unit and doesn't require any power. It includes the manual and it's a snap to hook up. All of your equipment is plugged into the back of the unit and all of your changes in configuration are made on the front panel. What's really great about how this was designed is the speed that you can make your changes. This is definetly a timesaver!