Brother Genuine DR920 Drum Unit delivers professional monochrome laser output with an approximate 45,000-page yield (Approximately 45,000 pages based on 1 page per job and 75,000 pages based on 3 pages/job (letter/A4 simplex pages). The number of pages may be affected by a variety of factors including but not limited to media type and media size). All Brother Genuine Supplies are designed as part of a complete printing system to provide superior quality and reliability. Use only Brother Genuine drums for reliable, business quality results. The Brother Genuine DR920 drum unit is for use with the Brother HL-L5210DN, HL-L5210DW, HL-L5210DWT, HL-L6210DW, HL-L6210DWT, HL-L6217DW, HL-L6310DW, DCP-L5510DN, MFC-L5710DN, MFC-L5710DW, MFC-L5717DW, MFC-L5915DW, and MFC-L6810DW.