Amazon.com: SEDNA - PCI Express 2 Port USB 3.0 Adapter - with Low Profile Bracket - (NEC/Renesas uPD720202 chipset) - Optional Power Connection : Electronics
SilverStone SST-EC01+ USB 3.0 Expansion Card - Bjorn3D.com
U3X8-PCIE8XE102 | Octad Channel 8-port (1-port x 8) USB 3.0 to PCI Express x8 Gen 2 Host Card | USB 3.0 Machine Vision Frame Grabber
Amazon.com: Syba 2 External USB 3.0 Port and 19 Pin Internal Header PCIe 2.0 x1 – 4 Port USB 3.0 PCI-Express x1 Renesas D720201 Chipset Molex Power Input : Electronics
Linkreal 4 Port USB 3.0 Type-A PCI Express Expansion Card PCIe to USB 3.0 Host Controller Card Super-speed 5Gbps with 15 Pin Power Connector - Newegg.com
U3X8-PCIE8XE104 Octad Channel USB 3.0 PCI Express Gen 2 Card