The clp y660b is a yellow toner cartridge for clx 6200fx clx 6210fx clx 6240fx clp 610nd and clp 660nd 5 000 page yield samsung color laser supplies are designed to maximize your printers performance youll enjoy top performance total reliability and impressive color quality every time you print their unique design and advanced technology offer easy to use features that make it easy to produce professional results at home or in the office