This 4 pack compatible Samsung MLT-D203L replacement black high yield laser toner cartridge for the Samsung ProXpress M3220ND, ProXpress M3370FD, SL-M3820DW, SL-M3870FW, SL-M4010ND, SL-M4070FR. Our Samsung MLT-D203L laser toner cartridges are a wonderful alternative to the expensive and overpriced OEM Toner Cartridge. Why buy expensive original Samsung MLT-D203L toner cartridges when our compatible replacements for the Samsung MLT-D203L are guaranteed to give excellent print results print after print! The use of our compatible toner cartridges do not void your printer's warranty. All of our products come with a 100% Satisfaction Guarantee!