Business professionals who have invested money in high-quality Brother products expect the same from replacement supplies. The Brother Genuine DR-360 Mono Laser Drum Unit is a replacement drum for use with 8 different Brother printers and all-in-ones, engineered as part of a complete printing system. These genuine replacement Drum Units are produced with precision to deliver sharp, text and graphics with every page printed. The DR-360 drum unit yields approximately 12,000 pages(1) when used with Brother Genuine toner cartridges (sold separately). Brother is dedicated to keeping the environment safe and produces our replacement products in ISO-certified factories. We offer several environmentally-responsible ways for our customers to dispose of their Brother branded products once they have served their purpose. Brother Genuine replacement supplies are backed by Brother's 'At Your Side' Warranty and customers enjoy lifetime tech support for the life of their printers. The Brother DR360 Drum Unit is for use with DCP7030, DCP7040, HL2140, HL2170W, MFC7340, MFC7345N, MFC7440N, MFC7840W.