This is a genuine black toner cartridge. Its capacity is about 6700 prints based on 5% coverage of A4 page format. Compatible with HL5130, HL5140, HL5150D, HL5170DN, HL5240, HL5250DN, HL5270DN, HL5270DNLT, DCP8040, DCP8045D, MFC8220, MFC8440, MFC8840D.Compatible Printers: Brother HL-5170 Series, Brother MFC-8440 Series, Brother HL-5100 Series, Brother MFC-8200 Series, Brother MFC-8840 Series, Brother MFC-8840, Brother MFC-8220, Brother HL-5140 LT, Brother DCP-8045 D, Brother HL-5150 D, Brother MFC-8240 LT, Brother HL-5140, Brother HL-5170 DN, Brother MFC-8440 LT, Brother HL-5130, Brother MFC-8840 LT, Brother MFC-8440 DN, Brother DCP-8040, Brother HL-5170 DLT, Brother HL-5170 DNLT, Brother HL-5150 DLT, Brother DCP-8045 DN, Brother MFC-8440 N, Brother MFC-8640 D, Brother DCP-8040 LT, Brother MFC-8440, Brother MFC-8440 D, Brother MFC-8240, Brother MFC-8840 D, Brother MFC-8840 DN