LxTek Compatible Toner Cartridge Replacement Set for Samsung 203L High Yield (1 Black) MLT-D203L for use in Samsung ProXpress M3320ND M3370FD SL-M3820DW SL-M3870FW SL-M4020ND SL-M4070FR Printer LxTek compatible toner cartridges replacement for Samsung 203L have been awarded ISO9001 certification, and we have independent laboratories periodically verify product quality to ensure a smooth user experience. Page Yield: 5,000 pages per toner cartridge at 5% coverage Compatible Printers: Samsung SL-M4070FR/XAA ProXpress Printer, Samsung SL-M4070FR, Samsung SL-M4020ND/XAA Laser Printer, Samsung SL-M4020ND, Samsung SL-M3870FW/XAA ProXpress Printer, Samsung SL-M3870FW, Samsung ProXpress SL-M3370FD Printer, Samsung ProXpress SL-M3320ND Printer, Samsung ProXpress SL-M3820DW Printer Package Contents: 1 Pack (1 Black) of LxTek compatible Samsung 203L toner cartridges (MLT-D203L) Guarantee: 1-year limited warranty / Shelf life: 18-24 months