This is a high quality compatible Brother TN-135 Rainbow Pack Laser Toners compatible with the following printers:Brother DCP Printers:Brother DCP 9040cn, Brother DCP 9042cdn, Brother DCP 9045cdn, Brother HL Printers:Brother HL 4040cn, Brother HL 4050cdn, Brother HL 4070cdw, Brother MFC Printers:Brother MFC 9440cn, Brother MFC 9450cdn, Brother MFC 9840, Brother MFC 9840cdw The black Laser Toner has a page yield of 5000 and all three colours have a page yield of 4000Using a compatible Laser Toner gives you excellent printout quality without the high prices!Images used are for illustration purposes only.