8 Inputs, giving you enough channels to connect all of your devices. -A / B Inputs on channel 3 & 8, giving a total of 8 Line inputs. -Active balanced RJ-45 or unbalanced RCA comes standard on every ARC-8. -1 stereo output bus. Both balanced and unbalanced outputs. -LED illuminated switch lamps. -Play & Record in digital with Windows PC or Mac. -USB sound card functionalit . . .