I trade Rare and Very Rare DOFFS. Primarily I'm looking for FED Tactical and Security DOFFs. Also looking for KDF Engineering and Operations.
I will give Common and Uncommon DOFFs to any TrekBBS member that needs them.
I also trade deployable satellite turrets/torpedoes. These fill a ship's device slot and have 20 (?) charges. They are good for harassing an enemy and drawing enemy fire (mainly PvE).