Multitester tested for voltage. The ac POWER CORD is included. Input: ac 120-127V Output: dc 31.5V / 3.17A. Genuine ORIGINAL factory Hewlett Packard HP Converter, voltage regulator, transformer, adapter, adaptor for the following printers:OFFICEJET D SERIES ALL-IN-ONE C7297A, C7298A DIGITAL COPIER/PRINTER 510 C8370A Digital Copier/Printer 610 C8372A, C8372AR OfficeJet D125xi All-in-One C8373A, C8373AR OfficeJet D135xi All-in-One C8374A, C8374AR OfficeJet D135 All-in-One C8375A OfficeJet D145xi All-in-One C8376A, C8376AR OfficeJet D145 All-in-One C8377A, C8377AR OfficeJet D155xi All-in-One C8378A, C8378AR Round barrel connector with a positive center. S&H in the contiguous USA is $5.(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.