2 XLR balanced mic/line inputs. 2 XLR balanced outputs. RCA inputs and outputs. 1/4 inch direct outputs. All channels are working, but the mixer would benefit from a service. Some pots and faders are crackly while moving, but quiet at rest. I recommend a bit of maintenance with electrical contact cleaner, maybe just compressed air could be enough. All LEDs are working, please see the pictures for cosmetic details. Feel free to ask any questions you may have.