They come with rubber feet (8) to stick on the bottom of the fans to prevent them from scratching or moving when placed on devices, they also come with a fan grills to protect the fan blades from wires or fingers
Notebook USB Cooling Fan
$1.69 – $2.97
Specially designed set of 80mm Fans powered by a single USB plug. These are made for Coolerguys to be used in cabinets or on/near devices that need some extra cooling.
Many components like DVRs, receivers and gaming consoles have extra USB ports so why not put em to work to help keep things cool. These fans work great cooling down your Xbox, play station, PS-4, your cable box, and DVR.