Belkin F5L001 Laptop Cooling Pad Patented wave design and high-capacity fan enhance cooling capabilities Ergonomic features improve typing comfort and reduce wrist and neck strain USB-powered; no bulky batteries or adapters necessary Convenient storage compartment for USB cable when not in use Measures 12.6 x 11.6 x 1 inches (W x D x H); weighs 22 ounces; Belkin lifetime warranty