In early 2015, a new hardware revision of Peplink Balance 380 was released.
Please refer to the following table for the differences across revisions.
Hardware Revision 6th Date of Release Early 2015 Enclosure
Hardware Revision 5th Date of Release Summer 2011 Enclosure
Hardware Revision 3rd / 4th Date of Release 2010 Enclosure
Hardware Revision 2nd Date of Release 2008 Enclosure
Hardware Revision 1st Date of Release 2007 Enclosure
Please note: Actual launch dates vary in different countries.