4-Port USB 3.0 PCIe Express Card, KT4001 / KTU3FR-4P

SuperSpeed USB 3.0 supports transfer rates of up to 5Gbps - The actual transmission speed is limited by the setting of the device connected 4 USB 3.0 downstream ports for standard desktop PCs; Supports USB Hot Plug, Plug & Play; Support LPM, Low Energy Consumption; 15 pin SATA Power Connector to power USB devices from your PC power supply Backwards compatible with USB 2.0 and 1.1 devices; Operating System Compatibility: Windows XP/Vista/7/8 With quick and easy installation. All USB 3.0 PCI-E Cards require an external connection to the power supply of the PC in order to supply voltage to the USB buss   5 Gbps in total: 5 Gbps is shared by 4 downstream ports. This speed can be reached while only one downstream port is in use.     UASP supported: It excellently show you the speed of USB 3.0 5 Gbps. Hot swap supported: The 4 downstream ports support hot swap function, plug and play. Installation and Driver: Please visit the official site of inateck, wh