LD Compatible Toner Cartridge Replacement for HP 81A CF281A (Black, 2-Pack) Page Yield per Cartridge: 10,500* | Shelf Life: 24-36 Months | *Average cartridge page yield in accordance with ISO 19752., The use of LD compatible HP CF281A black laser toner cartridges does not void your printers warranty. 100% lifetime and satisfaction guarantee on all LD-branded cartridges and printing supplies Our compatible CF281A black laser toner is guaranteed to deliver excellent, dependable results, page after page. For use in the following printers: LaserJet Enterprise Flow MFP M630dn, MFP M630z, MFP 630f & MFP 630h