[7 Ports for Mac Pro] Inateck 7 Ports PCI-E to USB 3.0 Expansion Card for Mac Pro (Early 2008 to 2012 Late Version) - Interface USB 3.0 7-Port Express Card Desktop with 15 pin SATA Power Connector for Mac OS 10.8.2 to Mac OS 10.9.5 7 Ports 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 SuperSpeed USB 3.0 supports transfer rates of up to 5Gbps - The actual transmission speed is limited by the setting of the device connected. Operating System Compatibility: Mac OS 10.8.2 to Mac OS 10.9.5 - The Expansion card is applicable to the MAC Pro ( 2008 to 2012 Version); Windows XP, Windows 7 and Windows 8 (32/64-bit), This PCI-E Card is incompatible with Mac OS X 10.10 Yosemite or Above; Backwards Compatible with USB 2.0 and 1.1 devices With quick and easy installation, this USB 3.0 PCI express I/O Card offers a simple solution for connecting to and using USB 3.0 devices on your Mac Pro; 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 Content: 1x USB3.0 PCI-E expansion card; 1x CD Driver for windows; 1x SATA 7 Pin + 15 Pin combo connector to 15 Pin SATA power connector + SATA 7 Pin Cable; 1x mounting screw; 1x User Manual