The Brother DR-2400 MFC-L2710/2730/2750/HL2310 12000 Page Drum Unit is the original Brother drum unit compatible with the MFC-L2710DW, MFC-L2730DW, MFC-L2750DW, and HL-L2310D printers. It has an estimated yield of 12,000 pages and operates independently of the toner cartridge, allowing you to replace only the consumable that runs out first instead of always replacing both together as would be the case with a combined cartridge. Installation requires no tools; simply remove the old unit and insert the new one directly into the printer compartment. It is suitable for offices with regular monochrome printing that use one of these models and need to replace the original drum to maintain the sharpness and print quality of the equipment over time.