HP 90X toner cartridge increases office efficiency by producing professional-quality documents consistently. Print at high speeds without sacrificing quality, and get increased energy-savings. Count on cost-effective, high-volume printing from this high-capacity cartridge. Cartridge is designed for use in Hewlett-Packard LaserJet 600 M602n, M602dn, M602x, M603n, M603dn, M603xh; M455h MFP, M455f MFP, and M4555fskm MFP. Cartridge yields approximately 24,000 pages.