The SF-19 has to be connected to the power socket with the supplied adapter, otherwise the fans will not operate. The LED lights and USB ports will work without the power adapter, but the fans won’t get enough power to spin.
The four USB ports on the right of the cooler are located right beside the power connector. The USB input port is a micro-B connector which means if you lose this cable its going to be relatively difficult to get a replacement. The other side of the cooler has the LED and fan controls, there is a large button to toggle the LED lights on and off and a smaller button which allows for LED colour adjustment. There is a fan speed potentiometer which can vary the fan speed between virtually silent and high performance modes.
Make no mistake, this is a serious cooler. There are two 140mm fans installed and they can be replaced with other models if you wish – the supplied literature supplied shows a step by step guide on how to replace the fans. Both fans are mounted at a slight angle which matches the slope of the main mesh cooling platform. Cabling can also be routed through a rubber housing at the top of the product.
Each side of the cooler has power connectors for each of the two fans – these are 3 pin molex connectors. We like the fact that these fans can be replaced if so desired, it opens up a whole new possiblity for user customisation.