Brother BU100CL Belt Unit is designed to perform in the Brother DCP-9040CN, DCP-9045CDN; HL-4040CN, HL-4040CDN, HL-4070CDW; MFC-9440CN, MFC-9450CDN, MFC-9840CDW.
Brother BU223CL Belt Unit is designed to perform in the Brother HL-3210CW, HL-L3230CDW, HL-L3270CDW, HL-L3290CDW, MFC-L3710CW, MFC-L3750CDW, MFC-L3770CDW.
Brother BU229CL Transfer Belt is designed to perform in the Brother HL-L3220CDW, HL-L3280CDW, HL-L3295CDW, HL-L8245CDW, MFC-L3720CDW, MFC-L3780CDW, MFC-L8395CDW.