Lexmark Part# C540H1KG. C540H1CG. C540H1MG. C540H1YG Toner Cartridge Set (OEM) Lexmark C540H1XX OEM High Yield Return Program Toner Cartridge Set for sale Black, Cyan, Yellow, Magenta Yield: Approx. 2,000 Pages (Color) & 2,500 Pages (Black) Compatibility: Lexmark C544DTN, C544DW, X543DN, X544DN, X544DTN, C544N, C546DTN, X544DW, X544N, C540N, X546DTN, C543DN, C544DN