There are borg item for 40 EDC each and the retro for 5 EDC each.
I'm sure there is a difference??? Or did i miss something?
The difference is retro Borg item is equivalent to Mk X and for 40 EDC you have a better equipment Mk XI... Or at least... that must be... In the real world some of that devices are far superior to others if you wish tank or live longer. They have +5 to energy to own system and special powers when 2 or 3 or 4 are set (for survival the powers of three pieces are impressive).
Set all set with the MACO shield and you will have a impresive tank. If you use a operations Ody, armor +35 to each energy type and another of +18 to all and the Dominion shield... and you haven't a ship. You will get a really hard to "kill" star ship (you lose some of shield and plasma reduction damage. MACO and dominion shield are ressilient, but you gain regeneration and crew survival, and that is one key to use Operations Ody)
Thanks to everybody for the fun, sorry for my bad english.