Amazon.com: (1-Pack) Extra High Yield Compatible MLT-D203L D203L Toner Cartridge 203L Used for Samsung ProXpress M3370FD M3870FW M4070FR M3320ND M3820DW M4020ND Printer, Sold by EasyPrint : Office Products
HP Samsung SU901A Black Toner Cartridge | BlueDogInk.com
Amazon.com: E-Z Ink (TM Compatible Toner Cartridge Replacement for Samsung 203 203L MLT-D203L High Yield to use with ProXpress M3370FD M3870FW M4070FR M3320ND M3820DW M4020ND (Black, 1 Pack) : Office Products
HI-Vision Compatible MLT-D203L / XAA High Yield Laser Toner Cartridge for Samsung ProXpress M3320ND, M3370FD, SL-M3820DW, M3870FW, M4020ND, M4070FR Printer (203L, Black 2 Pack) - Newegg.com
4x Pro Toner for Samsung Proxpress M-3870-FD M-4070-FX M-3820-D M-3820-ND 4059844898959 | eBay
Samsung ProXpress M4070FR Black High Yield Toner Cartridge, Genuine (G2565)