This is a compatible laser toner cartridge designed to replace the extra high yield Dell 593-BBBU / RD80W black toner. It delivers up to 6,000 pages and is guaranteed to perform with your Dell C2660dn and C2665dnf color laser printers. Manufactured by a third party, this cartridge meets high performance and quality standards, providing optimal print results. Using compatible toner cartridges does not void your printer's warranty. Backed by our 100% Quality Satisfaction Guarantee.