Lexmark C540H1KG High Yield Black Toner is designed to perform in the Lexmark C540, C540N, C543, C543DN, C544, C544DN, C544DTN, C544DW, C544N, C546, C546DTN, X543, X543DN, X544DN, X544DTN, X544DW, X544N, X546, X546DTN, X548, X548DE, X548DTE
Premium C540H1KG High Yield Black Toner fully compatible with the Lexmark C540, C540N, C543, C543DN, C544, C544DN, C544DTN, C544DW, C544N, C546, C546DTN, X543, X543DN, X544DN, X544DTN, X544DW, X544N, X546, X546DTN, X548, X548DE, X548DTE . The use of compatible supplies does not void your printer warranty.