E-Z Ink (TM) Compatible Toner Cartridge Replacement for Brother TN336 TN331 TN315 TN310 to use with MFC-L8600CDW MFC-L8850CDW HL-L8350CDW MFC-9970CDW HL-4150CDN (Black, 2 pack) E-Z Ink compatible toner cartridges replacement for Brother TN336 TN331 TN315 TN310 are manufactured in an ISO 9001 & ISO14001 certified facility. All toner cartridges are engineered to produce superb results. Package Contents: 1 x User Guide, 2 x TN336 Black (Total 2 Pack) Page Yield:4000 pages per cartridge at 5% coverage ($0.005 / page ONLY, Save up to 70% compared to OEM toner cartridge) Compatible Printers: Brother HL-4150CDN,HL-4140CN,HL-4570CDW ,HL-4570CDWT ,HL-L8250CDN,HL-L8350CDW,HL-L8350CDWT,MFC-L8850CDW,MFC-L8600CDW,MFC-L8650CDW,MFC-9460CDN,MFC-9465CDN,MFC-9560CDW,MFC-9970CDW,DCP-9055CDN,DCP-9270CDN,DCP-L8400CDN,DCP-L8450CDW Printer. Warranty & Support: E-Z Ink toner cartridge comes with 2-Year 100% Quality Guarantee / Shelf life: 24 months. Please contact Manufacturer E-Z Ink directly for any questions  Technical support, customer support is always online for you.