This is a high quality compatible HP Q5945A Black Laser Toner compatible with the following printers:Hewlett Packard LaserJet Printers:HP LaserJet 4345 mfp, HP LaserJet 4345x mfp, HP LaserJet 4345xm mfp, HP LaserJet 4345xs mfp This Laser Toner has a page yield of 12000Using a compatible Laser Toner gives you excellent printout quality without the high prices!Images used are for illustration purposes only.