Priced below the lowest price of previously sold models of the same type. It's a great deal! 4-channel analog mixer with USB connection. Operation has been confirmed. The exterior is very clean. AC adapter only, no original box. - Model Name: MultiMix 4 USB - Brand: Alesis - Connectors: XLR, TRS, RCA - Power: AC 10V 500mA - Controls: Level, Pan, Balance, Main Volume Thank you for looking.