Logisys Corp. N1 Notebook Cooler with 180mm Fan (NP1BK) Portable & slim design, only 2.6cm Fully covered metal mesh front panel, high cooling performance 18cm cooling fan with fan speed control button, big airflow & quiet operation USB pass-through connector for additional USB device Unique Anti-slip design ensures notebook safety Portable and Slim Design (1) 180mm Hydro Bearing Fan USB Pass through Connector w/a fan speed control button Fully Covered Metal Mesh Front Panel Fold-Out Feet Unique Anti-Slip Design