Take a giant leap in longevity with this imaging unit. Standout performance and maximum yield deliver a true investment in efficiency for Lexmark CS310N CS310DN CS410N CS410DTN CS410DN CX310N CX310DN CX410DTE CX410DE CX410E CS510DE CS510DTE CX510DTHE CX510DE and CX510DHE. Imaging unit lasts approximately 40000 pages.