This is a Genuine  Brother TN1050 Black Laser Toner compatible with the following printers:

Brother DCP Printers:
Brother DCP-1510, Brother DCP-1512,
Brother HL Printers:
Brother HL-1110, Brother HL-1112,
Brother MFC Printers:
Brother MFC-1810

This Laser Toner has a Page Yield of 1000