This is a BOSS (Roland) AC adapter, model "ACA-100G". I am selling it due to downsizing my equipment. This is not the currently mainstream PSA adapter, but an "ACA" specification adapter compatible with older BOSS compact effectors and the like. This is a rare Made in Japan model. [Condition] This is a used item. There are scuffs and scratches on the label due to age, and signs of use, but no major tears in the cable sheath are apparent. I have confirmed power and operation with a BOSS Metal Zone in my possession. It supplied power without any problems. [Product Details] - Manufacturer: BOSS (Roland Corporation) - Model Number: ACA-100G - Input: AC100V 50-60Hz - Output: DC 9V 200mA - Country of Manufacture: Made in Japan [Please Note] This is an "ACA" type adapter. It is ideal for older Japanese-made or early Taiwanese-made BOSS effectors (ACA specification). If used with current digital effectors that specify "PSA," noise may occur or they may not operate correctly. Please check the specifications of your equipment before purchasing. Thank you for your consideration. #BOSS #Boss #Roland #Roland #Effector #ACAdapter #ACA100G #MadeInJapan #Vintage #Guitar #Bass #MetalZone