Norton 360 Version 4.0 Premier Edition
Norton 360 Premier Edition is the enhanced version of Norton 360 that gives you extra online storage space for your backup files.
Norton 360 Premier Edition gives you more online storage space for your backup files than the basic version of Norton 360.
For detailed feature comparison of Norton 360 and Norton 360 Premier Edition refer to the description below and links attached.
Description
Norton 360 Premier Edition is the all-in-one Internet protection, PC tune-up and backup & recovery solution for all your security and backup needs.
This suite includes exactly the same features as the regular Norton 360, with the exception that the Premier version gives you extra online storage space included in the subscription price.
Storing files off-site gives you extra protection in case of a disaster or hardware failure.
For detailed list of Norton 360 features use this link.