Highlights Part number on carton and label is 9MKKY Compatible with Dell S5840cdn Laser Printer Offers up to 12000 page yield based on 5% page coverage OverviewEnjoy Brilliant print with this Magenta Toner Cartridge from Dell™ that delivers an optimal level quality and performance. This cartridge produces high-resolution printouts with clear images and sharp text and prints up to 12,000 pages. Moreover, it supports Dell's Toner Management System™ for low toner detection and easy online ordering.Manufacturer Part# : 440PKDell Part# : 593-BBXZCompatibilityThis product is compatible with the following systems: S5840cdn