Multitester tested for voltage. Genuine FACTORY ORIGINAL HP (not aftermarket or copy) power supply with the following: AC 100-240V and DC output: 32V 2500mA. The ac POWER CORD is included. This power adaptor works on a large number of Hewlett Packard printers:OfficeJet Pro L7780, L7750, L7700, L7681, L7680, L7650, L7600 Series, L7590, L7580, L7550, L7500 Series, L7480and thoselisted below: HP OFFICEJET PRO K5400 PRINTER C8184A, C8184AR HP OFFICEJET PRO K5400DN PRINTER C8185A, C8185AR HP Officejet Pro K5300 Printer C8194A, C8194AR HP OFFICEJET PRO K5400DTN PRINTER C9277A, C9277AR HP OFFICEJET PRO K8600 COLOR PRINTER CB015A HP OFFICEJET PRO K8600DN COLOR PRINTER CB016A HP OFFICEJET PRO K5400TN PRINTER CB056A HP Photosmart 8250 Photo Printer Q3470A, Q3470AR HP PHOTOSMART PRO B8850 Q7161A S&H in the contiguous USA is $FREE.(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.