Toner cartridge is designed for use in Brother DCP-9020CDN HL-3140CW HL-3150CDN HL-3170CDW HL-3180CDW MFC-9130CW MFC-9330CDW and MFC-9340CDW. All genuine Brother printer supplies are designed as part of an entire printing system to provide a superior degree of quality. Genuine Brother toner is delicately balanced to provide even flow and toner distribution. The approximate yield is 2 500 A4 or letter-size single-sided pages. Your printer will indicate when you need to replace it. Brother Genuine TN221BK Black Toner Cartridge 1 Each (Quantity)