This Genuine HP Color LaserJet C4149A Black Toner Cartridge is a high-quality product that is compatible with HP printers. It is an original and comes sealed, ensuring that you get the best quality prints possible. The cartridge is designed to work with HP printers and is compatible with models 8500 and 8550. The cartridge is black in color and is perfect for printing documents or other professional materials. It is made by HP, a trusted brand in the printer industry, ensuring that you get the best quality product possible. This product is perfect for those who need to print high-quality materials and want a reliable and efficient printer.