StarTech.com 5 Port PCI Express USB 2.0 Adapter Card (PEX400USB2) Connect up to 4 additional USB 1. 0/1. 1/2. 0 peripherals to the computer simultaneously Backed by a StarTech. com lifetime warranty and free lifetime technical support Provides four external USB 2. 0 ports and one shared internal port Fully compliant with USB 2. 0 specifications, with transfer rates up to 480 Mbps Backwards compatible with USB 1. 0/1. 1 devices Supports up to 127 USB devices per port (requires additional USB hubs) Plug-and-Play and Hot-Swap compatible OS Compatibility - Windows 8 / 8.1 (32/64bit), 7 (32/64), Vista (32/64), XP (32/64), 2000 Windows Server 2012, 2008 R2, 2003