USB5V2A power supply with switches, perfect for placing electronic devices and components in cabinets or rack with limited height Adjustable speed mode: This PC cooling fan is designed with adjustable speed mode, which is regulated by the controller to provide concentrated airflows and effective heat dissipation USB power supply: This computer cooling fan is powered by the USB interfaces of your electronic device or adapter, car, mobile power, and other standard USB ports : This computer case comes with a fan and a 1.5meter-long USB cable, making it and connection to your electronic devices Ideal for enthusiasts, blacksmiths, and electronics technicians requiring thermal management in workshops, kitchens, or equipment rack, Manufacturer: Oxxggkao