LD Products offers premium, low-cost alternatives to expensive name brand toners and drum units! Below find compatible replacements for the Brother TN580 high-yield black laser toner and Brother DR520 drum unit. Our compatible supplies are made with entirely new parts in order to deliver results almost identical to the original brand. In addition, we offer great deals on original Brother equipment and supplies. LD Products extends free shipping over $50 and a 100% satisfaction guarantee on all orders!