Thank you for viewing. This is a small digital amplifier SA-36A3 made by S.M.S.L (with original AC adapter). It is part of a large number of PC parts that my computer-enthusiast brother asked me to dispose of. It seems he bought it as a spare part, and there are several of them. The main unit is in very clean condition, and it is likely unused. The original box has some dents. According to my brother, he checked the operation and it worked normally, but it has been stored for a long time, so I cannot guarantee that it will continue to work properly. The included accessories are the power adapter and the instruction manual (no Japanese). Please check the photos. How about it for those who are familiar with computers or those who feel that their speaker volume is insufficient? Please understand that this is a used item that has been stored for a long time, and please refrain from purchasing if you are looking for a perfect product or if you are very particular about condition. Shipping will be done by wrapping the original box in wrapping paper. [Specifications] - Model Name: S.SA-36A - Power Adapter: Included - Volume Knob: Aluminum - Connection Terminals: RCA terminals - Power Adapter Specifications: DC12V output 3.8A - Exterior Color: Black/Silver #amplifier #selector #headphone amplifier #PC #computer #HDD #Windows #used #DIY #PC parts #junk Item number A1