The ultra compact design of the NT2 makes this dual-bay RAID storage enclosure one of the smallest in the market, yet it still packs a punch when it comes to flexibility and performance. Installing the 3.5" hard drives is quick and easy, thanks to the screwless design. By incorporating USB 3.0 SuperSpeed technology, AKiTiOs NT2 U3 is able to break the USB 2.0 barrier, delivering up to 10 times the speed of the older USB connection. At the same time, it is still backwards compatible with the widely used USB 2.0 technology.