Dataproducts 58850 Replacement toner cartridge for hp laserjet 4/5, high yield Assembled in Mexico 100% satisfaction guarantee; expert technical support 1-year warranty; 100% performance guarantee; expert technical support: The use of this Dataproducts print cartridges does not void your printer's warranty Compatible Hardware: HP LaserJet 4, 4M, 4+, 4M+, 5, 5M, 5MP, 5N, 5Se, 6 Page Yield: 10,000 Toner Cartridge For HP printer models LaserJet 4, 4M, 4 Plus, 4M Plus, 5, 5M, 5N. Remanufactured High-Yield Black Cartridge