7-Port PCI Express Card, Expand Three USB 3.0 A Ports and Two USB 3.0 C and Internal USB 3.0 20-PIN with 15-Pin Power Connector One Step Update your Computer to 5 ports USB3.0(2Type C+3Type A) Easily with PCI Express to USB3.0 Controller Adapter Card; 1 USB 3.0 19-pin Connector ( expand another two USB 3.0 ports ) SuperSpeed USB 3.0 supports transfer rates of up to 5Gbps - The actual transmission speed is limited by the setting of the device connected. Backwards compatible with USB 2.0 and 1.1 devices; Operating System Compatibility: Windows XP/Vista/7/8/