Premium C544X2MG Magenta Toner Cartridge fully compatible with the Lexmark C544, C544DN, C544DTN, C544DW, C544N, C546, C546DTN, X543, X543DN, X544, X544DN, X544DTN, X544DW, X544N, X546, X546DTN, X548, X548DE, X548DTE. The use of compatible supplies does not void your printer warranty.