Introducing the Marathon Laser Toner Cartridge, MAR27X, HP LaserJet High Yield in the classic and essential color black. This cartridge is designed to fit HP LaserJet 4000, 4000n, 4000t, 4000tn, 4050, and 4050n printers. High-yield and efficient, this cartridge is made from a combination of new and recycled parts, making it an environmentally-friendly choice for your printing needs. Each cartridge comes brand new in its box, ensuring top-quality performance from the first use. Additionally, this cartridge includes a toner collection unit, further enhancing its sustainability and eco-friendly design. Trust Marathon for reliable and sustainable printing solutions.