YoYoInk Compatible Toner Cartridges Replacement for Dell C2660/C2665dnf C2660 C2665dnf 4 Pack (1 Black 1 Cyan 1 Magenta 1 Yellow) Includes: 593-BBBU 593-BBBT 593-BBBS 593-BBBR C2660dn C2665dnf LISTING INCLUDES - 4 PACK (1 593-BBBU Black, 1 593-BBBT Cyan, 1 593-BBBS Magenta, and 1 593-BBBR Yellow) - Est. Page Yield - 6000 Pages (Black), 4000 Pages (Color) COMPATIBLE DELL PRINTERS - Dell Color Laser - Dell Color Laser C2660dn, Dell Color Laser C2665dnf INK LEVEL INDICATOR - Benefit from our smart chip with ease to track ink levels in your printer to AVOID running out of ink or annoying alert messages SUPERIOR QUALITY - Resists fading, smudging and bleeding with YoyoInk Color technology to allow you to print true-to-life photos and images and laser-quality text which withstand fading for decades. Built to meet or exceed OEM specifications 2 YEAR NO HASSLE WARRANTY - 100% No Hassle Money Back Guarantee with 2 Year Warranty