Here you can download the free version of Premium NAS R6
You can find instructions on how to create an installation CD or install it via a USB stick here.
How do I activate it?
If you would like to use Premium NAS permanently, just a few clicks will be required to unlock the full version.
After the installation you will need to register your product for free.
You can find the serial number after the installation under “System Administration” >> “System” >> “Activation”.