Notebook Coolers : CL-NBK68003 USB powered Mini stand notebook cooler Cooling stand for notebook computer from 7” to 15.4” Free airflow enhances heat dissipating Width adjustment from 22cm to 32cm USB cable storage compartment Powered by USB port in 5V DC/0.13 A Built-in 2.75 Inch fan Fan speed: 2300RPM CL-NBK68004 USB powered Mini stand notebook cooler with silver faceplate Cooling stand for notebook computer from 7” to 15.4” Free airflow enhances heat dissipating Width adjustment from 22cm to 32cm USB cable storage compartment Powered by USB port in 5V DC/0.13 A Built-in 2.75 Inch fan Fan Speed: 2300RPM   SY-NBK68010 Fits for Notebook and Netbook from 9” – 12” Built-in low noise cooling fan Unique and portable design Lightweight plastic material Air flow 12 CFM Rated power 5V DC, 90mA Speed 1600 RPM Fan Size: 2.75 x 2.75 x 0.4 in   SY-NBK68011 Powered by USB or 3x AA Batteries (Batteries not Included) Fits for Notebook and Netbook from 9" - 14" Power Source Switch (USB / Battery) Portable Design: 10" x 5" x 1.25" Lightweight Plastic Material: 11oz Rated power 5V DC, 90mA Built-in USB Cable Length: 18" BUILT-IN LOW NOISE COOLING FAN Air Flow 12 CFM Speed 1600 RPM, Fan Size: 70mm   CL-ACC65015 For fun, for display, or for cool. This desk fan is a great addition to any desktop Black Color Powered by USB Cable or 4 x AA Batteries On/Off Switch 2 Levels Fan Speed Control Knob Oscillatory Function with Powerful Ventilation Able to Adjust Fan Head Up and Down Dimensions: 8" x 6" x 4"