The Dynamode PCI USB (Universal Serial Bus) Card is a PCI card that provides 5 USB (Universal Serial Bus) 2.0-compliant ports for your desktop PC. 4 USB (Universal Serial Bus) ports are external while 1 remains inside the machine for internal expansion. Installation is easy & using the ports is foolproof thanks to the hot-swappable & plug-&-play design. The Dynamode PCI USB (Universal Serial Bus) Card is also backwards compatible with USB (Universal Serial Bus) 1.1 devices for maximum flexibility. Speeds up to 480 Mbps are supported via USB (Universal Serial Bus) 2.0.