Add 4 external USB (Universal Serial Bus) ports & 1 internal USB (Universal Serial Bus) port to your computer through a PCI Express slot. This 5 Port PCI Express USB (Universal Serial Bus) 2.0 adapter card lets you connect up to five USB (Universal Serial Bus) 2.0 peripherals (4 external & 1 shared internal) to your computer, with support for high speed USB (Universal Serial Bus) data transfer rates of up to 480 Mbps.