Multi Core X6 DP-N422-MCX6 Features: 4 built-in fans deliver high airflow volume for cooling the entire notebook base with no blind area. Creative Multi-Core Control Technology enables users to select from one of the 4 different fan operating combinations: 4 fans ON / 2 upper fans ON / 2 downside fans ON / 4 fans OFF. Ergonomic design with 2 viewing angles for improved user comfort. Massive metal mesh panel for superb cooling performance. 2 USB ports for connecting to external USB devices. Specifications: Overall Dimension 380X295X24mm Fan Dimension 140X15mm/100X15mm Net Weight 900g Bearing Type Hydro Bearing Rated Voltage 5VDC Operating Voltage 4.5～5VDC Started Voltage 4VDC Rated Current 0.2±10%~0.45±10%A Power Input 1W~2.25W Fan Speed 1000±10%RPM/1300±10%RPM Max. Air Flow 121.4CFM Noise 24dB(A)