The TTP-Toner Tech Pro compatible CF281A (HP 81A) black laser toner cartridge is professionally manufactured by TTP-Toner Tech Pro. This is not a remanufactured cartridge and it was not manufactured by HP. This newly built cartridge from TTP-Toner Tech Pro may contain new and used parts. It is an excellent choice over costly OEM HP CF281A (81A) black laser toner cartridges. Our compatible CF281A black laser toner is guaranteed to deliver excellent, dependable results, page after page. The use of TTP-Toner Tech Pro compatible HP CF281A black laser toner cartridges does not void your printer’s warranty. TTP-Toner Tech Pro compatible CF281A black laser toner cartridges come with a Two Year 100% Quality Satisfaction Guarantee. For use in the following printers: LaserJet Enterprise Flow MFP M630dn, MFP M630z, MFP 630f & MFP 630h. We are the exclusive reseller of TTP-Toner Tech Pro brand of high-quality printing supplies on Amazon.