Posted by SoniaFiverr1 on 5/15/2019 to
Brother Toner Cartridges
Yes, it is indeed compatible to the DR-350 Drum.
TN-350 Jumbo https://www.canadatoner.ca/Brother-TN350-TN-350-Black-Laser-Toner-Cartridge_p_4842.html
DR-350https://www.canadatoner.ca/Brother-DR350-DR-350-Black-Drum-Unit_p_4972.html