Inktoneram Compatible Toner Cartridge Replacement for HP C9721A 641A LaserJet 4650 4650n 4650dn 4650dtn 4650hdn 4600 4600n 4600dn 4600dtn 4600hdn (Cyan) This package contains: 1 Inktoneram Replacement toner cartridges to replace HP 641A ( C9721A ) Cyan Toner cartridge. (THIS IS A COMPATIBLE REPLACEMENT PRODUCT ONLY. THIS IS NON-OEM .) To replace Cartridges with part numbers : C9721A. Page Yield : 8,000 Pages / each cartridge at 5% coverage Printer Compatibility: HP Laserjet: 4600, 4600n, 4600dn, 4600dtn, 4600hdn, 4650, 4650n, 4650dn, 4650dtn, 4650hdn Warranty: Our Compatible Inktoneram Replacement toner cartridges to replace HP 641A cartridges are manufactured under strict ISO-9001 standards. They are excellent economical alternatives to the high-cost OEM toner cartridges. These cost-effective toner cartridges will provide high quality prints that meet OEM standards and are guaranteed against defect. Our compatible Replacement toner cartridges to replace HP 641A cartridges come with a 90 day 100% money back guarantee.