I bought one of these cooling hubs before they thought about incorporating USB ports which would be very useful if using the laptop on a desk, superfluous if not.
Having lost two laptops recently to what my local computer repairer called overheating-related problems, the cooling hub is my way of trying to avoid a further event. So far so good. The hub is audible but not intrusive and certainly keeps the laptop underside much cooler than without it. In fact my laptop system monitoring shows the processor temperature and this was kept consistently lower by the hub - to the point where the laoptops internal fan was not needed, even after 30 minutes continuous use.
(Written by: Essgeebee)