Welcome to the Lexmark X-340 product page. Here you can find information and pricing for your Lexmark X340A21G Genuine Lexmark Toner Cartridge. Easy online ordering of your X340A11G Genuine Lexmark Toner Cartridge, X340A11G, X340H21G, X340A21G, X340H11G, can be completed from this page. Tonerprice.com backs all of our cartridges with our exclusive warranty. As always, we provide free ground shipping on orders over $75 within the contiguous United States from 5 warehouses nationwide.