Multitester tested for voltage. This is a voltage EQUIVALENT version for the YAMAHA power supply with 12.5W and anInput: ac 120VAC and Output: dc 12VDC 700mA (aka: 12volt DC 0.7amp). Amperage can be higher, but never lower. Round barrel connector witha hollowpositive center.Shape, size or color may differ from product photo. Compatibility:Recommended for PSR-E403 and below, YPT-400 and below, EZ-200 and EZAG. Also compatible with past models recommending PA3C and the following Silent Stringed Instruments: SV-120, SVC-50, SVC-100, SVC-200 and SVB-100This item will not fit into 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 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 strictlywithinUSPS control and not within the control of seller. Please leave 5 stars for seller 4 day drop-off time. Thankyou.