Premium Quality 60F1X00 Black Toner Cartridge compatible with the Lexmark MX510, MX510de, MX511, MX511de, MX511dte, MX511dhe, MX610, MX610de, MX611, MX611de, MX611dhe, MX611dte. The use of compatible supplies does not void your printer warranty. Product Detail Ninestartechonline.com