INK4WORK Compatible Toner Cartridge Replacement for Brother TN660 TN-660 to use with HL-L2320D HL-L2340DW HL-L2360DW HL-L2380DW MFC-L2700DW MFC-L2720DW MFC-L2740DW DCP-L2520DW (Black, 3-Pack) ink4work Compatible TN660/TN-660 High Yield Toner cartridge (Replace TN630) We offer a 100% Quality Satisfaction Guarantee. Sold by ink4work (Not made by Brother) ISO9001 certified. 3 x ST-TN660 High Yield Compatible Toner Cartridge Yield up to 2,600 pages based on 5% coverage of lettle size paper.