I just unlocked the borg prosthetic Mk XI weapons in the rep store and bought the Maintenance Drone and the secondary fire, Borg Shield Neutralizer, says "6 plasma damage over 5 seconds". That doesn't sound right. In fact, it sounds pretty useless. I asked in zone chat about it and other players said it was "a known bug". Did I just waste my dilithium on this thing?
I was replaying the episode "Boldly they Rode" to get the Jem'Hadar ship set item and used the "Borg Shield Neutralizer" on a Jem'Hadar enemy and saw a few ticks of 1 damage each above its head. I looked at the combat log after defeating the group and sure enough, the secondary attack on this item, Borg Prosthetic - Maintenance Drone Mk XI, does what it says it does: 6 plasma damage over 5 seconds.
What's the point of only doing 6 damage? Would have been better off just leaving that part off and keeping as a shield neutralizer attack only. This weapon sucks and sucks big time. Very unhappy with it.
Here's a screen shot with it marked proving it was only doing 1 damage per tick: