Page Yield*: 5,000 pages Compatible with Lexmark 501H High Yield Black toner (per cartridge) *at 5% coverage (ISO/IEC standard) Package Contents: 2 x Lexmark 501H Black compatible toner cartridges 50F1H00 Compatible with the Lexmark MS Printers MS310d, MS310dn, MS312dn, MS315dn, MS410d, MS410dn, MS415dn, MS510dn, MS610de, MS610dn, MS610dte, and MS610dtn Product name: Lexmark 501H 501 H 501-H Black Compatible toner cartridge replacements for Lexmark 501 501H (50F1H00) Lexmark is a registered trademark of Lexmark and is not affiliated with and does not endorse SPEEDYIINKS. Professionally manufactured by SPEEDYIINKS