Printer Drum Unit Brother DR-3400: This original drum unit is designed for selected Brother printer models. The DR-3400 delivers consistent, high-quality print quality over its lifetime. The drum unit is capable of printing up to 50,000 pages. Using genuine Brother supplies is a prerequisite for superior device functionality as well as saving time and resources.Parameters and Specifications:Compatible printers:Brother HL-L5000D, HL-L5100DN, HL-L5100DNT, HL-L5200DW, HL-L5200DWT, HL-L6250DN, HL-L6300DW, HL-L6300DWT, HL-L6400DW, HL-L6400DWT, DCP-L5500DN -L5700DN, MFC-L5700DW, MFC-L6800DW, MFC-L6800DWT, MFC-L6900DW and MFC-L6900DWTCapacity:50,000 pages