From Drive Headquarters:
DriveHQ FileManager is a special FTP client that integrates with FTP virtual server hosting service. It includes Online Storage and Sharing, Online Backup, Web hosting, Folder Synchronization and regular FTP features. it is extremely reliable, efficient and secure; much faster than regular FTP or HTTP. You can drag-n-drop thousands of files or gigabytes of data. It supports advanced file caching, encryption and compression, can automatically resume broken downloads or uploads. The user interface is similar to Windows Explorer or FTP client software.
Detailed features includes resume broken downloads / uploads from the point of interruption, share different folders to different users / groups with different permissions, publish folders and create static links (i.e. Publish URLs) to files and folders, advanced caching that brings performance on par with local storage, automatically prompt the user to send "Share change notification email" if he uploaded / modified a file in a Shared folder, sync folders among multiple PCs and users; real-time and scheduled synchronization; one-way or two-way synchronization; sync folders with file / folder name filters, and can upload files larger than 10GB.