PREMIUM QULAITY OF HP GENUINE BLACK TONER CARTRIDGES YIELDING 9,200 PAGES. COMPATIBLE PRINTERS (IF ANY): HP HP OFFICEJET PRO MFP X476DW,HP HP OFFICEJET PRO MFP X451DW,HP HP OFFICEJET PRO MFP X576DW,HP HP OFFICEJET PRO MFP X551DW