The HP 138A Black Toner Cartridge (W1380A) is specifically designed for HP printers, ensuring compatibility and optimal performance. This ink cartridge is in black color and falls under the category of ink, toner & drum units. The model number for this cartridge is hp w1380a, which indicates its precise fit for the designated printer model. With this genuine HP product, users can expect high-quality prints and reliable performance for their printing needs.