LD Compatible Toner Cartridge Replacement for Dell 593-BBBU Extra High Yield (Black) 100% Satisfaction & Lifetime Guarantee For use in Dell Color Laser C2660dn & C2665dnf Page Yield Per Cartridge: 6,000 | Shelf Life: 24-36 Months Replaces High Yield: 593-BBBU, RD80W, 67H2T & Standard Yield: KWJ3T, 593-BBBR, HD47M The use of compatible replacement laser toner cartridges and supplies does not void your printers warranty