Generic Remanufactured Toner Cartridge Replacement for HP 641A ( Magenta ) Compatible with select HP and Color LaserJet models. Comparable to the HP 641A (C9723A) cartridge. Backed by 100% No-Risk Quality Guarantee to perform to your complete satisfaction. Yields up to 8,000 pages. Greener choice  they require less energy to produce and help prevent waste in landfills.