The TUSB8040AEVM board is a free-standing reference design for a four-port SuperSpeed USB (USB 3.0) hub. It is used to evaluate system compatibility. A SuperSpeed enabled host system and cable is required to evaluate SuperSpeed data transfer. The TUSB8040AEVM will work with USB 2.0 hosts systems as a USB 2.0 hub. No software is required to enable the device. The board will work with any operating system that has USB hub class support built in.