This is a Genuine  Brother DR3400 IMAGING Drum Unit compatible with the following printers:

Brother DCP Printers:

    Brother DCP-L5500DN
    Brother DCP-L6600DW
    Brother HL-L5000D
    Brother HL-L5100DN
    Brother HL-L5100DNT    Brother HL-L5200DW
    Brother HL-L5200DWT
    Brother HL-L6300DW
    Brother HL-L6300DWT
    Brother HL-L6400DW    Brother HL-L6400DWT
    Brother MFC-L5700DN
    Brother MFC-L5750DW    Brother MFC-L6800DW
    Brother MFC-L6800DWT    Brother MFC-L6900DW    Brother MFC-L6900DWT

This has a Page Yield of 30000