This combo pack (N9J73AE) of genuine HP ink cartridges are ideal for use with your HP Photosmart models. The pack contains 4 ink cartridges, including Black, Cyan, Yellow and Magenta. HP print cartridges deliver an unparalleled combination of print quality, speed, reliability and low cost per page. This cartridge produces precise, micro-fine ink drops for outstanding print quality.. Black Page Yield 250. CMYK Page Yield 300. HP N9J73AEFor use with: HP DeskJet 3070/3520, HP PhotoSmart 5510/5520/5525/6510/6520/7510/7520/ALL-IN-ONE/B8550/C5380/C6380/D5460/E STATION/ PLUS ALL-IN-ONE/PREMIUM ALL-IN-ONE/ PREMIUM FAX ALL-IN-ONE/WIRELESS ALL-IN-ONE, HP OfficeJet 4620/4622