This is USB 3.0 Motherboard 20pin male to dual USB3.0 male Adapter. It has a motherboard IDC 20Pin male connector at one end, and dual USB 3.0 type A male ports at the other end. It is commonly used for PC Motherboard, expanding the internal port of the motherboard into 2 USB ports, convenient for connecting the external devices with the internal one.
website:http://www.kaiwin-link.com/usb....-3-0/usb-3-0-adapter