Whats this on my connectors

[Eternally_Golden]

Its a black box connecting thwm together

 

[vrumor]

What does this even mean? Do you want us to guess? Have to include a pic or give more info.

 

[schwatzz]

Do you mind uploading a picture or finding one to show us? Though my best guess right now would be a ferrite core.

 

[Eternally_Golden]

http://imgur.com/a/QWbGL