The Taiwanese company, Gigabyte has new Pure-series portable hard drive released preparation, called the Gigabyte Pure Classic and the Gigabyte Pure Classic 3.0. Both the external hard drives have a sexy matte finish with rounded corners and smooth curved rims. The Gigabyte Pure Classic portable hard drive uses USB 2.0, while the Gigabyte Pure Classic 3.0 is super-speed USB 3.0 interface. It is a 2.5-inch form factor with a size of 120 x 81 x 14 mm and weighs approximately 150 grams. Both Gigabyte Pure Classic external hard drives come in 320GB, 500GB, 640GB and 750GB capacity.