Inateck 4 Ports PCI-E to USB 3.0 Expansion Card Interface USB 3.0 4-Port Express Card Desktop compatible Windows XP/7/8/10, Mini PCI-E USB 3.0 Hub Controller Adapter, No Additional Power Connection Needed No additional power supply for normal recognition and operation needed anymore; One Step Update your Windows Computer to USB3.0 Easily with PCI Express to USB3.0 Controller Adapter Card; Supports USB Hot Plug, Plug & Play; Low Energy Consumption Operating System Compatibility: Windows XP,7 ,8 (32/64-bit),10; Backwards Compatible with USB 2.0 and 1.1 devices; Super Speed USB 3.0 supports transfer rates of up to 5 Gbps, The actual transmission speed is limited by the setting of the device connected With quick and easy installation, Enjoy copying videos, music, photos, data files between USB devices and the computer at blazing fast speeds Windows XP and Vista Users Please Note: Due to OS limitations, the real transfer speed after installation of the respective drivers will be located between the level of USB 2.0 and 3.0 Package: 1x USB3.0 PCI-E Expansion Card; 1x CD Driver; 1x User's Manual