E-Z Ink DR520 Drum Unit for Brother DR520 DR620 Imaging DrumProduct DescriptionThis compatible drum unit replaces Brother DR520 and DR620 drums for select laser printers. The imaging drum provides approximately 25,000 pages of print yield at 5% coverage. Designed for easy installation, the unit includes a user guide. The drum is compatible with numerous Brother printer models including DCP, HL, and MFC series. Note that this is a drum unit only and does not include a toner poundsProductdimensions3.9 x 8.7 x 12.9