This is a Genuine Brother DR 2100 Imaging Drum Unit compatible with the following printers:Brother DCP Printers:Brother DCP 7030, Brother DCP 7040, Brother DCP 7045n, Brother HL Printers:Brother 2170, Brother 2170w, Brother HL 2140, Brother HL 2150n, Brother HL 2170, Brother HL 2170w, Brother MFC Printers:Brother MFC 7320, Brother MFC 7440 n, Brother MFC 7440n, Brother MFC 7840w This Drum Unit has a page yield of 12 000