Where do I insert my POWER LED connector in the motherboard?

I recently purchased an NZXT Apollo computer case which came with a 4-pin power led connector. However, I found that there were no instructions in the motherboard/case manuals of where to insert the connector in the motherboard(I own an Asus P5Q SE/R Intel ATX motherboard).I did some research, but most people seem to have 2 or 3 pin connectors.