Features: brand new and high quality Adjustable speed manage the airflow and noise; quiet operation in auto mode and the max noise is less than 60dbm. Draws out the heat from laptop inside, be more scientific and more efficient to cool off laptop rapidly. Quick installation provides an easy mounting solution, just plug and for play Small and lightweight, large air volume, low noise and long service life. The bracket itself has two USB ports, to solve the problem of insufficient notebook USB ports, allows you to work more efficiently with a normal operating computer! Specifications: Fan Speed: 4500RPM Rated Voltage: 5V USB Cable Length: 0.7m/27.56in Color: Black Main Item Size: approx.400x348x50MM /15.75 x13.7 x 1.97inch Material: ABS Type:14/15inchUSB Standard / 14/15inch USB Colorful for Glare Version/ 14/15inch Power Colorful for Glare Version/ 17inch Power Colorful for Glare Version Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 x Radiator Host 1 x Usb Cable 1 x Manual