CloudBerry Drive mounts your Rackspace Cloud Files account as a network or external drive to your Windows desktop. With CloudBerry Drive you can work with files in Rackspace storage straight from the Windows Explorer, the same way as if they were on your local drive.
Rackspace Cloud Files represent a scalable S3-compatible object storage service for media data and files. Apart from data storage Rackspace offers Content Delivery Network service to deliver the content of your website globally with minimum latency. Read Rackspace official documentation to learn about it in details.