Amazon.com: Kingwin 2 Port PCI-Express USB 3.0 Host Controller Card (U3PCI-2) : Electronics
Amazon.com: Sedna - PCIE 7 Port USB 3.0 Adapter Card (7 External Ports) with Molex Power Connector, (NEC Host Controller) : Electronics
4-Port USB 3.0 PCI-E Controller Card, EEEkit Super Fast 5Gbps PCI Express(PCI-e) Expansion Card with Build in Self-Powered Technology, Compatible with Windows Server, XP, 7, Vista, 8, 8.1 - Walmart.com
4x USB 3.1 Expansion Card with Dedicated Controllers - CoastIPC
StarTech.com 2-port 10Gbps USB 3.1 Gen 2 Type-C PCI Express Host (PEXUSB312C3)
Quad USB 3.0 Host Controller XMC (7235) | Technobox
Mini PCI-Express USB 3.0 Host Controller Card - SD-MPE20215
IOIUSB | U3-PCIE1XG211 | 4-port USB 3.0 to PCI Express x1 Gen 2 Host Card | Fresco FL1100
Freecom - USB 3.0 Express Card host controller
ORICO 2-Port USB 3.0 ExpressCard/54mm
SUNIX - USB 3.2/3.0/2.0
SYBA Multimedia PCI-Express USB 3.0 Host Controller Card SD-PEX20137
Amazon.com: StarTech.com 4-Port PCI Express SuperSpeed USB 3.0 Controller Card with UASP - USB 3.0 Expansion Card with SATA Power (PEXUSB3S4V) : Electronics
Pcie To 5 Ports Usb3.0 Converter Dual Ports Usb3.1 Type-c Pci Express Expansion Card Internal Usb 3.0 For Mac Pro Fresco Fl1100 - Add On Cards & Controller Panels - AliExpress
IOIUSB | U3X8-PCIE8XE103 | Octad Channel 16-port (2-port x 8) USB 3.0 to PCI Express x8 Gen 2 Host Card
PCI Express to SuperSpeed USB 3.0 Host Adapter 3+1 Ports U-750, Synchrotech