Backup2 Portable is a backup software for Windows that uses as backup destinations portable devices such as USB flash drives (memory sticks).

Backup2 Portable Features:
1. Standard compression format
2. Backup to USB flash drives
3. Predefined backup jobs
4. Mirror backup with zip
5. Backup plugins
6. Scheduled backups
7. Automatic updates
8. Backup statistics
9. Adding sources is easy
10. File version tracking
11. Open file backup
12. Multiple backup types
13. Easily backup and restore data
14. Intuitive Interface

The license of this software is Free Trial Software, the price is $19.95, you can free download and get a free trial.