The magenta LC105 Innobella Super High Yield XXL Ink Cartridge (Magenta) from Brother yields approximately 1200 pages and is designed for the following printers:
MFC-J4310DW
MFC-J4410DW
MFC-J4510DW
MFC-J4610DW
MFC-J4710DW
MFC-J6520DW
MFC-J6720DW
MFC-J6920DW