4 Port USB 3.0 USB3.0 HUB to PCI-E PCI Express Card Adapter Converter 2 Internal 2 External VIA VLI VL805 5.0Gbps Compliant with USB 3.0 specification. Date transfer rate up to 5.0Gbps / 625MB/s. Stable and reliable Chipset VIA VLI VL805. Compatible with USB 2.0 & 1.1 specification. 2 external and 2 internal USB 3.0 type A female connectors.