Whenever a visitor comes to your site, data is sent from our web servers to your visitor's computer. This data may be composed of web pages, images, compressed files, or anything else on your site that can be viewed or downloaded by visitors. Your Email traffic, FTP ( File Uploads and downloads ) Count towards bandwidth. All this requested data added together equals your total data transfer. The more visitors you have, the higher data transfer limit you'll need. You can always buy additional data transfer as your site grows. For extra bandwidth prices please visit http://www.fastwebhost.com/addon.html