The Brother Genuine-Drum Unit is a mono laser printing system that is designed to seamlessly integrate with your existing Brother printer. This unit is engineered to deliver crisp, sharp printing with consistent quality. It also has a yield of up to 12,000 pages, making it a great choice for high-volume printing. This Drum Unit also features advanced toner technology that produces accurate, consistent prints. And because it is designed specifically for use with Brother printers, you can be assured of seamless integration and optimal performance. So if you're looking for a reliable, high-quality Drum Unit that will work with your Brother printer, the Brother Genuine-Drum Unit is the perfect choice.