MTI C540H2MG Compatible Magenta Laser Toner Cartridge (Standard Yield: 2K) for Lexmark C540, C540N, C543, C543DN, C544, C544DN, C544DTN, C544DW, C546, C546DTN, X543, X543DN, X544, X544DNX, 544DTN, X544DW, X544N, X546, X546DTN, X548, X548DE, X548DTE If you do not receive your product in an MTI-branded box, it is not a genuine MTI product. Let Amazon know. Compatible Printers: Lexmark C540, C540N, C543, C543DN, C544, C544DN, C544DTN, C544DW, C546, C546DTN, X543, X543DN, X544, X544DNX, 544DTN, X544DW, X544N, X546, X546DTN, X548, X548DE, X548DTE Color: magenta | Yield: 2,000 pages based on 5% coverage Replaces OEM Part #: C540H2MG