Quickly adds two SuperSpeed USB 3.0 (1 external & 1 internal) ports to your PCIe-equipped desktop puter-enhancing existing systems with the latest USB 3.0 technology; Works with high-bandwidth SuperSpeed USB 3.0 devices such as external hard disks high-resolution webcams camcorders video surveillance cameras digital video cameras multi-channel audio and more; Internal SuperSpeed USB 3.0 port is perfect for connecting to front-chassis USB hubs or devicesPrimary InformationNetworking Type : USB adapter Form Factor : Plug-in card - low profile Networking Interface : PCI Express Networking / Ports Qty : 2 Data Transfer Rate : 5 Gbps Data Link Protocol : USB 1.1; USB 2.0; USB 3.0 Connectivity Technology : Wired ExpansionInterfaces & Connections : 1 x SuperSpeed USB - 9 pin USB Type A ( internal );1 x SuperSpeed USB - 9 pin USB Type A ( external ) Service&SupportService & Support Type : Limited lifetime warranty Special FeatureRoHS : Y UNSPSC CodeUNSPSC Code : 43201404