DOUBLE D 972 972A 972X Ink Cartridges 4 Pack BK C M Y for HP PageWide【Chip Upgrade Device】 Upgrade to the latest version at any time with the upgrade device, no headachesc about the printer not recognizing the ink cartridge,【Compatible Printers】 Pagewide 377dw, 377dn, 477dw, 477dn, 577dw, 577z, 452dn, 452dw, 552dw, P55250dw, P57750dw Printer,【Packag Contents】1 x Black 972A, 1 x Cyan 972A, 1 x Magenta 972A, 1 x Yellow 972A, 1 x Chip Upgrade Device, 1 x Gloves, 1 x User Guide,【Extra High Yield】 3,500 pages per Black 972A ink cartridges, 3,000 Pages per Cyan 972A Magenta 972A, Yellow 972A (at 5% coverage),【Advantages】 ①Multiple Certifications, ②Premium Print Quality, ③Cost Effective, ④Newest Chip, ⑤Secure Packed，⑥Show Ink Level,【Reliable Support】DOUBLE D offer 24 hours support, please don't hesitate to get in touch with us if you have any questionsVisit our store for more great deals!Thank you!