Smartti IO SMT-SD-PEX-NEC5U PCI Express USB2 5Ports Controller Card Retail Best Connectivity USB 2.0 4-port x1 PCI Express Controller Card General Features: x1 PCI Express interface Four (4) USB 2.0 ports NEC USB 2.0 host controller chip Supports high speed (480 Mbps), full speed (12 Mbps), and low speed (1.5 Mbps) Full Plug and Play and Hot Plug compliant Regulatory Approvals: FCC CE