This is a high quality compatible HP C4129X High Capacity Black Laser Toner compatible with the following printers:Hewlett Packard LaserJet Printers:HP LaserJet 5000, HP LaserJet 5000dn, HP LaserJet 5000gn, HP LaserJet 5000n, HP LaserJet 5100, HP LaserJet 5100dtn, HP LaserJet 5100tn This Laser Toner has a page yield of 10000 Using a compatible Laser Toner gives you excellent printout quality without the high prices!Images used are for illustration purposes only.