SpecificationsCompatible notebook: up to 17"Dimensions: 400 x 275 x 30 mmFansize (4 pieces): 140 x 140 mmFanspeed: 1000 ± 10%RPMVoltage: 5VDCPower: 1.75WWeight: 910 grams Powerful cooling delivered by four fansOptimized vent mesh for an excellent heat dissipationAdjustable stand angle2-port USB hub