E-Z Ink (TM) Compatible Toner Cartridge Replacement for Brother TN580 TN650 TN550 TN620 High Yield to use with HL-5370DW, HL-5340D, DCP-8060, DCP-8065DN, HL-5240, HL-5250DN, MFC-8660DN (Black, 2 Pack) E-Z Ink compatible toner cartridges replacement for Brother TN580 TN650 TN550 TN620 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 TN580 Black (Total 2 Pack) Page Yield:8000 pages per cartridge at 5% coverage ($0.001 / page ONLY, Save up to 70% compared to OEM toner cartridge) Compatible Printers: Brother DCP-8060, DCP-8065DN, DCP-8080DN, DCP-8085DN, HL-5240, HL-5250DN, HL-5270DN, HL-5280DW, HL-5340D, HL-5350DN, HL-5370DW, HL-5380DN, MFC-8370, MFC-8460N, MFC-8470DN, MFC-8480DN, MFC-8660DN, MFC-8670DN, MFC-8680DN, MFC-8690DW, MFC-8860DN, MFC-8870DW, MFC-8880DNP, MFC-8890DW 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.