Encore USB 2.0 PCI Controller Card is a value-added, high speed I/O adapter that works with USB peripherals, such as printers, webcams, hard drives and MP3 players. It provides backward compatibility to USB 1.1 devices as well as up-to-480Mbps connections to USB 2.0 products. It has four external ports and 1 internal port; each port automatically detects the correct speed and functions of the attached device. ENLUSB2-5PCI-BR’s hot swapping feature allows you to attach or remove devices without turning your system off. In addition, the 480Mbps data transfer rate makes this I/O card ideal for external storage, backup, networking and video devices. Attach as many USB peripherals as you need without cluttering your desktop or re-configuring your computer settings. Type: PCI to USB Card External USB Ports: 4x USB Ports Internal USB Ports: 1x USB Port Standard: USB 2.0 Data Transfer Rate: 480/12/1.5 Mbps Operating Systems Supported: Windows 98SE/ME/2000/XP Features: Supports USB devices, such as webcams, printers, hard drives and MP3 players Features 4 external Type A USB ports and 1 internal Type A USB port Hot-Swappable -- no need to turn off computer when adding/removing devices Quick Plug-and-Play installation Backward compatible with previous USB standards