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The Asus U31JG, designed for urban professionals on the move,boasts a stylish brushed-aluminum finish that coats the lid and wraps around the black plastic keyboard. It's not just a fashion statement either: The aluminum trim reinforces the plastic chassis, creating a sturdy ultraportable laptop that packs enough power to play games and run your presentations while remaining light enough for you to carry on your daily commute.Akku Apple A1175 ,

The compact 4.2-pound case (5.3 pounds with the power adapter) contains an Intel Core i3-380M CPU running at 2.53GHz, 4GB of DDR3 RAM, and a 500GB hard drive. Upgrade options are available for both the CPU and the memory, though anyone willing to shell out more than the $800 retail price (as of April 12, 2011) of the Asus U31JG for improved performance should probably consider upgrading to a more expensive ultraportable such as the Lenovo ThinkPad X220.

The U31JG's glossy black plastic keyboard is recessed within the aluminum case. Though it has no backlighting, the Chiclet-style keyboard is spacious enough to type on comfortably for hours. The keys felt sturdy under my fingers. Unfortunately, while the black plastic certainly looks sexy when you open the box, it causes the accumulated dirt and dust of daily use to stand out like scratches on a black Mercedes. Each plastic key is lightweight and shallow, too, Apple laptop battery ,so the feedback from touch typing isn't terribly satisfying. That said, the multitouch one-button touchpad recessed into the U31JG's brushed-aluminum palm rest works well under pressure, though my oversize fingers found it a little too cramped for comfort.