HP inkjet cartridges 940 is compatible with the following printers: OfficeJet Pro 8500 Wireless, 8500a, 8500a Plus, 8500a Premium, 8500, 8000, 8000 Wireless, 8500 Premier Package includes: 4 pack of HP ink 940XL black C4906AN Compatible with HP 940 XL ink HP940XL Black Page Yield*: 2200 HP940XL Color Page Yield*: 1400*. *at 5% coverage (ISO/IEC standard) All LD branded remanufactured 940 XL HP compatible ink cartridges and printhead HP Officejet pro 8500a products are specially engineered to meet the highest standards of quality and reliability Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.