9-12v volt 9v power supply = Yamaha PSR 3 11 36 keyboard electric plug piano VDC

Multitester tested for voltage. Power supply voltage EQUIVALENT toYamaha adapter and other keyboard adapters. AC input120V and DC output: 9v 700mA (aka: 9 volt DC 0.7A). Amperage can be higher but never lower. Round barrel connector witha hollow positive center. Please check your device for electrical compatibility. Photo is generic. Shape, size and color may differ from photo. Special heavy wrapping is provided to protect the prongs. S&H in the contiguous USA is $4.(insured shipping).Please see other interesting items by JGritUSPS DELIVERY TIME: As stated in the item listing, seller will drop-off your item to the USPS within 4 days of receiving cleared payment. How long it takes to deliver to your door is strictlywithinUSPS control and not within the control of seller. Please leave 5 stars for seller 4 day drop-off time. Thankyou.