Both the 11.6- and 13.3-inch Samsung Chromebook 2 can now be ordered in the U.S. OMG Chrome noticed the product pages showing the order information on Monday. Expect to pay $319.99 or $399.99, respectively, and wait a few weeks: Samsung’s product page says the devices will ship in 14–21 business days.

The company announced the pair of Chromebooks on March 3, saying that it was targeting an April launch. The two new Chromebooks are expected to offer a big performance boost over the old $249 model because Samsung is using its own eight-core Exynos 5 in the Chromebook 2 laptops. The 2012 model came with a dual-core Exynos chip. As a result, Samsung says to expect a 125 percent performance boost in the new devices.

The pair also come with 4 GB of memory — helpful for running multiple Chrome(s goog) apps and having many browser tabs…