How to clone a USB flash drive to another USB flash drive for free?

This video shows how to clone a USB flash drive to another USB flash drive for free. This method is also useful for cloning a bootable USB drive onto another identical, larger, or smaller capacity USB drive. To clone a USB drive, go through these steps:
Step 1. Connect the source and target USB drives to your computer. Download and install DiskGenius Free Edition on your computer. To get the free tool: https://www.diskgenius.com/free.php
Step 2. Lauch the disk cloning software, and you can see all drives on your computer, including the source and target USB drives. Go to "Tools" - "Clone Disk".
Step 3. Choose the destination USB drive and click "OK" button. Be sure to choose the correct target drive, as all the data on the target drive will be overwritten in the process of disk cloning.
Step 4. Once you've got settings done, click Start button to proceed.
Step 5. A warning message pops up saying that the cloning process will erase data on the destination disk. If you don't have any important data on it, click OK button to proceed.
Step 6. Let the cloning process to complete.