Esperanza EGC102 laptop cooling pad 2000 RPM Black

Input voltage: 5 V | Fan speed control: No | Number of height positions: 2 | Number of built-in cooling fans: 4 pc(s) | Fan diameter: 12.5 cm | Rotational speed (max): 2000 RPM | Power source type: DC, USB | Fan performance: 56 cfm | Illumination: Yes | Width: 415 mm | Illumination colour: Red | Product colour: Black | Height adjustment: Yes | USB ports quantity: 2 | Noise level: 17 dB | USB version: 1.1 | Fan diameter 2: 8 cm | Height: 305 mm | Host interface: USB | Depth: 27 mm