Is your Lexmark office printer giving you streaks, faded prints, or a 'replace drum' message? This is the remanufactured drum unit you need. It's compatible with a whole bunch of popular Lexmark business printers like the MS310, MS410, MS510, MS610, MX310, MX410, MX510, and MX610 series. It matches part numbers 50F0Z00, 500Z, and 500ZA. This is a black drum unit for laser printers with a hefty page yield of about 60,000 pages, which is great for busy offices. It's a generic/unbranded replacement, but it's built to do the job at a fraction of the OEM cost. Comes brand new in its packaging, ready to swap out and get your printer back to producing crisp, clean documents. Replacing the drum is usually much cheaper than buying a whole new printer. Perfect for small businesses, schools, or home offices that rely on these workhorse Lexmark models. Keep your office running smoothly without the high cost of manufacturer parts!