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Each cartridge individually print tested at manufacturing stage.. For Brother Printers - MFC-J4410DW, MFC-J4510DW, MFC-J4610DW, MFC-J4710DW, MFC-J870DW, DCP-J4110DW, DCP-J752DW. Colour - Magenta. Yield - Up to 600 pages. Ink Volume - 10ml.