Prints up to 1,000 pages in accordance with ISO/IEC 19798 High quality genuine Brother black toner cartridge TN-243BK Genuine Brother toner cartridges are rigorously tested to print perfectly every time saving you time and money Using this Brother TN-243BK original laser toner cartridge protects your printer warranty The TN-243 toner cartridges are available as a more economical multipack - TN-243CMYK Connectivity Technology: Ethernet, Form Factor: All-in-One Compatible printers: HL-L3210CW, L3230CDW, L3270CDW, DCP-L3510CDW, L3550CDW, MFC-L3710CW, L3730CDN, L3750CDW, L3770CDW