Generic Remanufactured Toner Cartridge Replacement for HP CF280A ( Black , 2-Pack ) Alternative to OEM, comes with ONE YEAR WARRANTY from the date of purchase against manufacturer defects. Page Yield: Black 2700 pages at 5% coverage on Letter/A4 paper. This replacement Toner cartridge is built to ISO9001 and ISO14001 Factory Standards. Compatible with HP LaserJet Pro 400 Series HP LaserJet 400 M401 HP LaserJet 400 M401a HP LaserJet 400 M401d