Small USB Fan Ideal for cooling PC computer case / Laptop / TV box / Receiver / AV Cabinet / PS4 / Xbox / Projector Instrument / Router / Hard Drive Enclosure and small spaces that require ventilation. Quiet 80mm CoolerMini USB cooling fan with 3-speed control. Fan speed can be set for optimal noise and airflow levels. USB plug and 2-in-1 designPlug and Play, very convenient, can place the fan horizontally or vertically.2 fans can be used separately or connected together for speed control, USB plug can be used to power the fan through the USB port of the electronics. Dimension 80 x 80 x 25 mm3.14x 3.14 x 0.98 inch Bearings: Hydraulic Rated Voltage:5V 0.25A Speed: 2500RPM Air flow: 39CFM Noise: 27dBA Power:1.2Watt Connector: USB Air Pressure:0.29 In H2O Warranty & Technical supportFor non-human damages , we are supported for one year to get a new replacement. If you have any concerns, please feel free to Commun