3-2-3 power injection T's with Ray Wu ends on them. The data line is a pass through from one end to the other with no T. The Positive and Negative T off to the 2 wire pigtail for the power injection.
The pigtails are available in pairs if you would like to add them for making 2 core Ray Wu extension.
They are available here.
Great product - used them on one of my new high density props.