4 x 4010, USB Brushless Cooling Fan 40mm Fan DC 5V for Small Appliances
4 x 4010 Brushless Cooling Fan. 4010 USB Brushless Cooling Fan. Lead Wire: USB; Length: Approx.1m / 39.37 in. Whether you're looking to improve airflow in your computer case or keep your laptop cool, this fan is an excellent choice.