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 C7297AC7298A
DIGITAL COPIER/PRINTER 510 C8370A
Digital Copier/Printer 610 C8372AC8372AR
OfficeJet D125xi All-in-One C8373AC8373AR
OfficeJet D135xi All-in-One C8374AC8374AR
OfficeJet D135 All-in-One C8375A
OfficeJet D145xi All-in-One C8376AC8376AR
OfficeJet D145 All-in-One C8377AC8377AR
OfficeJet D155xi All-in-One C8378AC8378AR

Round barrel connector with a positive center.

S&H in the contiguous USA is $6.(insured shipping).
Please see other interesting items 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.