Koutech USB 3.0 20-Pin ICC to Dual Type-A Adapter Connects to motherboard or add-on USB 3.0 card with 20-pin ICC header-pin connector Two (2) USB 3.0 Type-A downstream connectors for SuperSpeed USB 3.0 devices Fully Plug-N-Play compatible USB Specification v.1.0/1.1/2.0/3.0 compatible (data transfer rate at 1.5/12/480Mbps/5.0Gbps) Supports Windows XP/Server 2003/Vista/Server 2008/Windows 7/Windows 8 or higher & Linux OS