This is a premium, made in the USA replacement drum unit for Brother DR820 guaranteed to perform with Brother Laser Printers. It replaces the genuine (OEM) Brother DR820 drum unit. This drum is made with top quality components and new toner to give you the highest quality printouts every time. This compatible or remanufactured for Brother DR820 drum unit is specially engineered to meet or exceed the highest standards of quality, reliability and page yields. Although this drum is not made or endorsed by Brother, it offers customers an economical alternative to expensive OEM Brother DR820 unit and comes with our satisfaction guarantee.