Slight problem

I had to replace my H150I ELITE Capellix with an H150i Elite and I have no clue where to plug the USB section of the wiring harness in, as the other two USB slots are filled in, one by an ICUE hub and the other filled by the case itself. Do I even need to plug it in or am I boned?

I had to replace my H150I ELITE Capellix with an H150i Elite and I have no clue where to plug the USB section of the wiring harness in, as the other two USB slots are filled in, one by an ICUE hub and the other filled by the case itself. Do I even need to plug it in or am I boned?