Dataproducts premium drums for laser printers help you get more for your money. Dataproducts only uses the highest quality components to guarantee performance that meets or exceeds OEM drum performance. Dataproducts drums are developed and manufactured in state-of-the-art facilities utilizing technology and automation to ensure consistent, high quality printing. All Dataproducts drums go through rigorous pre and post testing, are backed by a 100% satisfaction guarantee, and include expert cartridge support. Dataproducts helps to protect the environment by keeping used cartridges and cartridge components out of landfills. This drum unit is compatible with Brother DCP-8040, DCP-8045D; HL-5140, HL-5150D, HL-5150DLT, HL-5170DN, HL-5170DNLT; MFC-8120, MFC-8220, MFC-8440, MFC-8440D, MFC-8440DN, MFC-8640D, MFC-8840, MFC-8840D, MFC-8840DN. It yields 20,000.