Ink4work 3 Pack CF280A (80A) Remanufactured Toner Cartridge for HP LaserJet Pro 400 MFP M401 / M425 Laser Toner Printers Approximate cartridge yield: up to 2,700 standard pages (average continuous black, declared yield value in accordance with ISO/IEC 19798, actual yields vary considerably based on images printed, other factors. ISO9001 certified. Sold by ink4work Replace HP CF280A Not made by HP