The HP 508X Black is an Original HP LaserJet toner cartridge in high-yield capacity for HP Color LaserJet Enterprise M552 and M553, HP Color LaserJet Enterprise MFP M577 and HP Color LaserJet Flow MFP M577. It is rated for about 12,500 pages, so busy offices change cartridges less often and pay less per printed page. It features HP JetIntelligence, which HP says delivers more pages and protects against counterfeit cartridges. Original HP toner is matched to the printer, giving sharp black text and consistent output at the speeds the printer was built for, and HP's anti-fraud and authentication features help confirm you are getting a genuine cartridge. In the box you get one toner cartridge ready to install. It is a dependable choice for offices that print reports, invoices and documents every day. After comparing online prices, www.marvel.co.za should be the cheapest on this product.