CrossFTP is an excellent FTP client. CrossFTP Pro is a FTP client supporting SFTP, FXP, WebDav, and Amazon S3. It uses a familiar, Explorer-like interface so that the novice user can master in minutes. Versatile secure protocol choices made transfer simple. Up to 40x multi-thread enigne turbos the speed.
After 30-day trial, it will turn back to free CrossFTP Foundation version.