water pump

Hello Watercooling forum, I recently got my hands on this cooler from OverclockersUK. I have had this installed on a Gigabyte G97X Gaming 3 motherboard, for an Intel i7-4790K (~4GHz) CPU. It is set to boot to a Samsung 860 EVO 250 GB SSD with Windows 10 Professional installed as the operating...

So after this and this post we went ahead and redid the whole loop with 90° fittings and improved layout and new tubes. The PC looks visually good as seen in the picture here. So we thought maybe our problems are solved now, a new and improved layout, a new mainboard, PSU, rad later this could...

I just purchased this as a replacement to my dead water pump. The main tank also has a SATA connection. Is this for the light? as it is not connected to the pump. Thanks..