Multitester tested for voltage. If your Yamaha keyboard says: 9-12v at the plug in hole, this is what you need. Power supply voltage EQUIVALENT to Yamaha adapters with the following: AC input 120V and DC output: 9v 700mA (aka: 9 volt DC 0.7A). Amperage can be higher but never lower. Please check your device for electrical compatibility. Shape, size and color may differ slightly from photo.
Special heavy wrapping is provided to protect the prongs. S&H in the contiguous USA is $5.(insured shipping). Please see other interesting auctions by JGrit
USPS 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 strictly within USPS control and not within the control of seller. Please leave 5 stars for seller 4 day drop-off time. Thankyou.