AABCOOLING NC84 – Black Notebook Cooler that has five fans! Perfect for very large notebooks that need a strong and solid cooling base. One 125mm fan and four 70mm fans are suitable for efficient cooling of gaming laptop accessories. The two Start / Stop buttons allow you to turn on a single 125mm fan or four 70mm fans. It is also possible to switch on all fans so they work at the same time. The lower part of the computer cooling fan is also well shaped to keep the knees cool, so as to use the notebook also in the bed. Fans are properly protected to prevent e.g. bed linings from feeding in cooler technical data:Laptop cooler dimensions: 388 x 290 x 27 mm (L x W x H)Size with adjustment: 388 x 290 x 46,5 mm (L x W x H)Material: Plastic + aluminum GridWeight: 780gPlug & Play Version – just plug it to make it workData Transmission: USB 2.0 & 1.1 ports to 480 MbpsPower supply: USB 3.0 / 2.0 / 1.1 / 1.0, 5V DCPower consumption: 5V DC, 0,35A~1,1A/ 1,7W~5,5WFans dimension: 4 x : 70 x 70 x 15 mm, 1 x : 125 x 125 x 20 mmNumber of fans: 5, BLUE LEDFan speed (regulated): 70mm – 2500 RPM ± 10%, 125mm – 1300 RPM ± 10%Airflow: 113 CFMNoise: level of 17 dB(A), SUPER SILENT modeAdjustment of inclination: additional legs that increase the slopePower cord length: 60 cmBearings: HydraulicLifespan: 20000hExcellent cooling:The use of the AABCOOLING NC84 helps keep your laptop cool, protects it from overheating, and prevents from experiencing several problems: performance drop and a noticeable slowdown in performance, battery life and processor crashes.