Lexmark 702HK. Black toner page yield: 4000 pages, Printing colours: Black, Quantity per pack: 1 pc(s)Compatible Printers: Lexmark CS 410 n, Lexmark CS 310 n, Lexmark CS 510 de, Lexmark CS 410 dtn, Lexmark CS 510 dte, Lexmark CS 310 dn, Lexmark CS 410 dn