About this item 【L/M/H 3-Degree Speed Controller】It has 3 adjustable speeds, low (slow speed), medium (fan runs smoothly for most applications), high (maximum airflow). 【Variety used】The fan can be laid flat/standing upright, suitable for routers, PS4 game consoles, Xbox, PC laptops, TV set-top boxes, projectors, etc. 【Safe】There are plastic meshes on both sides of the fan to protect the fan blades and cables, and to protect your fingers from scratches. 【Quiet and Comfortable】With rubber feet to reduce noise and vibration to avoid disturbing. 【Convenient 】With 2 in 1 USB interface, 2 fans connect to one USB cable and work simultaneously. .
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