LxTek Remanufactured Ink Cartridge Replacement 63XL 63 XL (2 Black) High Yield Compatible DeskJet 3633 All-in-One Envy 4520 All-in-One OfficeJet 3830 4650 All-in-One Printer LxTek remanufactured ink cartridges replacement for HP 63XL have been awarded ISO9001 certification, and we have independent laboratories periodically verify product quality to ensure a smooth user experience. Package Contents: 1 Pack of LxTek Remanufactured HP 63XL ink cartridge - 1 Black Compatible Printers: DeskJet 1110, DeskJet 1112, DeskJet 2130, DeskJet 2131, DeskJet 2132, DeskJet 2133, DeskJet 2134, Deskjet 3634, DeskJet 3630, DeskJet 3631, DeskJet 3632, ENVY 4520, OfficeJet 3830, OfficeJet 3831, OfficeJet 3832, OfficeJet 3834, OfficeJet 4650, OfficeJet 4652, OfficeJet 4654 and OfficeJet 4655 Page Yield : 480 Pages per Black (pigment ink) Cartridge at 5% coverage Warranty: All products come with a 1-year limited warranty / Shelf Life: All products have a shelf life of 18-24 months