Multitester tested for voltage. Power supplyEQUIVALENTfor manyYAMAHA PA-130 adapter keyboards. AC input120V and DC output: 10Vor 12V 700mA (aka: 12volt DC 0.7amps). Amperage can be higher, but never lower. Please check your device for electrical requirements. Shape, size or colormay differ from photo.Round barrel connector with a POSITIVE hollow center. This item will not fit in a small flat rate box. Special heavy wrapping is provided to protect the prongs. S&H in the contiguous USA is $7.(insured shipping).Please see other interesting products 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.