This is a cartridge made of parts by a 3rd Party Supplier to be compatible with a brother printer.
This is a high quality compatible Brother LC-800 Black Ink Cartridge compatible with the following printers:
Brother Fax 1815C, Brother Fax 1820C,
Brother MFC 3220C, Brother MFC 3320CN, Brother MFC 332CN Brother MFC 3420C, Brother MFC 3420CN Brother MFC 3820CN Brother MFC 400
Using a compatible Ink Cartridge gives you excellent printout quality without the high prices!