89X Black 2 Pack Toner Cartridge Compatible for HP CF289XA 2-pack of black toner cartridges designed for select HP LaserJet Enterprise printers. Each cartridge contains a chip that communicates with your printer to display accurate ink levels and works with the latest firmware updates. The yield is approximately 10,000 pages per cartridge at 5% coverage. These are ideal for high-volume office printing. Note that you may need to disable the Cartridge Policy and automatic update functions in your printer settings for best results, and a non-HP warning message may appear upon installation but does not affect print quality.MPNTONERItemweight5.00 poundsProductdimensions1.0 x 1.0 x 1.0 inchesStyleTONER CARTRIDGE