With an enormous 20,000 page yield from the original Samsung CLT-C659S/ELS and the rest of the 659 toner cartridge series, these genuine consumables offer a surprisingly low cost per page. The cyan toner cartridge in the series, the C659 offers a quality of print that only Samsung can offer and is guaranteed to impress.The genuine Samsung CLT-C659S/ELS is compatible with the CLX-8640ND, CLX-8650ND and every other high quality laser printer found listed on this page. Whilst other alternatives to the C659 are in circulation, this original version come highly recommended for those who wish to invest in brand new Samsung products.