For use in machine model number: T644,T644DN,T644DTN,T644N,T644TN,X644E,X644EF,X646DTE,X646E,X646EF
Alternative Part Numbers: 64435XA Toner High Yield
Cartridge Type: Be Green Ink Eco Series Compliant Toner Cartridge
Printer Manufacturer: Lexmark
Page Yield: 32,000
Color: Black