model: R9-NBC-CMC3-GP color: black materials: plastic,rubber weight: 0,55kg / 1.21 lbs dimensions: 322x290x50mm fan dimensions: 200xx200x20mm fan fan speed: 700rpm+-15% fan speed adjuatment: single fan speed fan airflow: 74.5 cfm fan noise level: 21dBA power: usb 5V DC usb: 2.0/1.11 (for power in) current consumption: 0.3A, 1.5W compatibility: up to 15" laptops