First rule of internet purchasing - check with the manufacturer's site or read the manual to ensure that the item is compatible. Don't just rely on the short description unless you have done your due diligence first.Secondly I don't know why people are getting 3rd party product. I ordered and received my last cartridge in June 2012 and it was a genuine HP item. I did look at all the details and I made sure I ordered it through Amazon not some third party. I don' tk..