Toner Refill Store's premium compatible Samsung color toner cartridges contain brand new parts and are 100% guaranteed to meet or exceed your expectations and surpass the print quality of the OEM (Original Equipment Manufacturer) Samsung CLP-321N. Our Samsung CLP-321N color toner cartridges are made from the highest quality materials and are manufactured in an ISO-9001 certified factory. Toner Refill Store carries the CLT-K407S, CLT-C407S, CLT-M407S, and CLT-Y407S compatible toner cartridges. We also offer many toner refill kits in combo packs for increased savings! Our toner refill kits come with smart chips which will reset your "low toner" message and allow you to keep printing worry free! We also offer refill kits without the reset chips for customers that have a chip resetter. Our Samsung CLP-321N high yield laser toner cartridges have a 'One Year 100% Satisfaction Guarantee'. The use of our premium compatible laser toner cartridges for the Samsung CLP-321N does not void your printer's warranty.