damnit knc, why did you have to remove ports 5 & 6 from the Nov Jups. 
Some of the Oct Jupiters were shipped with only 4 ports as well. Not really fair for those that planned to upgrade them.
$2 in parts, a little soldering skills....
No soldering skills here, but can you link me to the parts?
I solder. It is not a simple as it sounds. The odds are higher that you'll make your controller board non-functional than succeed in adding sockets - unless you are an experienced technician with a lot of soldering time. Get an old motherboard, remove a connector with .1" spacing between the pins even if it has many more pins than the socket you wish to add to the controller board. Try putting one of those sockets into the motherboard. You'll see it's more difficult than you expect. Anyone who would tell a novice to try such a thing to a controller board is looking to reduce the net hashrate by killing your machine.
I wish knc would have just put 6 connectors on all jupiter controller boards. It probably would have cost them less than $1 per Jupe and would have made them upgradable.