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
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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
Amazon.com: SEDNA - PCI Express 2 Port USB 3.0 Adapter - with Low Profile Bracket - (NEC/Renesas uPD720202 chipset) - Optional Power Connection : Electronics