E-Z Ink (TM) Compatible Toner Cartridge Replacement for Dell N51XP 769T5 8WNV5 NPDXG High Yield (2 Black, 1 Cyan, 1 Magenta, 1 Yellow) 5 Pack Compatible with 2150cdn 2150cn 2155cdn 2155cn Printer Brand: E-Z ink Black is 3,000 pages per toner cartridge. Color is 2,500 pages per toner cartridge All cartridges are manufactured in an ISO 9001 certified facility All cartridges are engineered to produce superb results All products covered by a 100% satisfaction guarantee and 1 year warranty