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.