Compatible Replacements Included: 3 Pack CF281A / HP 81A Black Toner Cartridge Compatible Printers: HP LaserJet Enterprise MFP M630h, HP LaserJet Enterprise MFP M630f, HP LaserJet Enterprise Flow MFP M630z, HP LaserJet Enterprise Flow MFP M630dn Print the same number of pages as the original 81A HP compatible toner cartridge Black Page Yield*: 10,500 Average cartridge Page Yield* in accordance with ISO-19752. *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.