Do it Wiser Compatible Brother TN336Y TN315Y TN310Y TN331Y Yellow High Yield Toner Cartridge for Brother MFC-L8600CDW HL-L8350CDW MFC-L8850CDW MFC-9970CDW HL-4150CDN Printer Compatible with Part Number: TN336Y TN315Y TN310Y TN331Y Estimated page yield: 3500 pages (depends on printer and usage) Suitable for printer models: Brother MFC-L8600CDW, HL-L8350CDW, MFC-9970CDW, HL-L8250CDN, HL-L8350CDW, MFC-L8850CDW, MFC-L8650CDW, DCP-L8400CDN,DCP-L8450CDW, HL-4140CN, HL-4150CDN, HL-4570CDW, MFC-9460CDN, MFC-9560CDW Our Do it Wiser smart toner cartridges are covered by a 1 year warranty against defects Cartridges certified to work | ISO 9001 quality assurance | ISO 14001 environmental management | RoHS Lead Free