About this item Compact Size The dimension of fan: 4.7 x 4.7 x 1.6 in /12 x 12x 4 cm, It doesn’t take too much space on your desk or any surface you’re going to use. Easy to install This fan is super easy to set up. set the fan speed from O to L, M or H. The noise level is low and the fan is sturdy made of high quality materials.The 4 foot are great for keeping the fan flat. they also keep the fans from rattling on the table/desk whether it’s standing or laying flat. Plug and Play This fan powered by a 3.2ft cable, you can simply plug it into the power supply for the whole day or continuous working. Adjustable speeds Adjustable speed to meet your various cooling demand. Low speed: 1100rpm; Medium speed: 1300rpm; High Speed: 1500rpm. Applications Heat being the enemy of electronics, I'm a firm believer in using cooling fans wherever practical,use this fan to keep your equipment cool extends it's life.