This All-Carbon Fiber Ultrabook Weighs Just 2.1 Pounds. A 12 inch laptop that weighs only 2.1 pounds? That's impossible. But, with a carbon fiber structure, the new Gigabyte X11 is a full function ultrabook, with a 128 Gig SSD drive, an 11.6 inch screen, 4Gigs of RAM, and a best in class IVY Bridge processor. As you might expect, for a Windows 7 computer that is 4 ounces lighter than a MacBook Air, this puppy will cost north of $1,000. My Asus Core I7 with a 500 Gig drive weighs 5 pounds, and since I got it for less than $700, I think I can stand the extra weight. If you don't need an on board DVD drive, or more than 128 Gigs of storage, and you are very rich, go for it. You will be able to say you own the lightest notebook computer in the land. And you will have a lighter wallet to go with it.