Check the listing for details. HP OfficeJet 8500A Printer Main Logic Board A910a Formatter. Condition: Used. Listed at 25.00 USD. This is an HP OfficeJet Pro 8500A (A910A) Formatter board. Original HP Part. Parts Number: CM755-60009, CM755-80003 It has been tested fully to make sure it is functioning 100%. ******There is 3 different HP 8500A printers. A910a, 8500A Plus - A910g, and 8500A Premium - A910nA910 number can be found on the inside of the cartridge door.This part is for A910a Please feel free to ask me questions. Item will be carefully packed and shipped.We ship fast using USPS Mail Service to all States and US territories.--------------------------------We strive to deliver the best product for the price and the best customer service. Please give us that chance by contacting us if you have any questions with your order. We will try to do our best and make you a happy buyer in eBay community. Thank you for looking! (G3299)