This LD remanufactured C4933A (HP 81) yellow inkjet cartridge is an original Hewlett Packard C4933A ink cartridge which has been through one cycle of service and has been recharged. This professionally remanufactured LD cartridge for HP 81 has a smart chip that makes continuous adjustments to optimize print quality and enhance reliability and cost effectiveness as well as monitor ink levels. The ink delivery system allows for efficient, economical replacement of individual ink cartridges. Why buy an original HP C4933A cartridge when you can get perfect quality out of our LD remanufactured C4933A inkjet cartridge at a fraction of the cost? Our remanufactured ink cartridges are not remanufactured by HP. We offer a Two-Year 100% Quality Satisfaction Guarantee on our remanufactured C4933A ink cartridges. For use in the following printers: DesignJet 5500UV, DesignJet 5500PS, DesignJet 5000ps UV, DesignJet 5500UVPS, DesignJet 5500, DesignJet 5000ps, DesignJet 5000 UV, DesignJet 5000. We are the exclusive reseller of LD Products brand of high quality printing supplies on Newegg.