High Performance Silver Black Aluminim USB Cooling Chill Pad with 3 Built-in Fans with 4-port USB 2.0 Hub for Acer Aspire One Netbook Notebook Cooler Pad w/4-Port USB 2.0 HUB General Features: Black and silver Color Four (4) Port USB 2.0 HUB Three (3) reliable fans Sleek, compact, light weight design LED Pad Air flow: 28 CFM Power consumption: 0.9W Rated Voltage: 5V Rated current: 180 mA Fan Speed: 1500 RPM Noise Level: 25 dBA On/Off Fan Switch Unit Dimensions: 12.5 x 10 x 1-inch (L x W x H approximate) It's great for laptop users. Keep your laptop cool can prevent all sorts of undesired symptoms cause