Compatible with: HP Enterprise Flow MFP M630z, M604dn, M604n, M605dn, M605n, M605x, M606dn, M606x, MFP M630dn, MFP M630f, MFP M630h, M605 dh Laser Compatible Replacements Included: 3 Pack CF281A / HP 81A Black Toner Cartridge Delivers 10,500 pages just like the original 81A HP compatible toner cartridge Average cartridge Page Yield* in accordance with ISO IEC 24711. *at 5% coverage (ISO/IEC standard) This is the standard yield version of HP 81X / HP CF281X compatible toner cartridge / HP Toner Black Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.