Expansion Backplane, 8 PCIe x4 slots (416) - One Stop Systems
PCI-E to 8 Port USB 3.0 (2xUSB-C, 6x USB-A ) Expansion Card 5Gbps,Exte – RIITOP
Amazon.com: PCI-E to USB Expansion Card Super Speed 7-Ports(5X USB 3.0 A,2X USB C) PCI Express(PCIe) Expansion Card Desktop PC Internal Hub for Windows 10/8/7 and MAC OS : Electronics
StarTech.com SATA PCIe Card - 2 Port PCIe SATA Expansion card - 6Gbps SATA Card - Full/Low Profile - PCI Express to SATA Adapter - ASM1062R SATA RAID Controller Card - PCIe
Cyclone Microsystems - PCI Express Expansion Backplanes and Adapters
8-Port USB PCIe Expansion Card, Industrial Grade USB
PCIe USB 3.0 Expansion Card 4 Port (No Need Power Supply), RIITOP PCI-
ThinkStation Thunderbolt 4 PCIe Expansion Card with HP Bracket | 4XF1L53431 | Lenovo US
Amazon.com: PCIe to USB 3.2 Gen 2 Card with 20 Gbps Bandwidth 7 USB Ports (4 USB Type-A and 3 USB Type-C Ports), PCI Express (PCIe) Expansion Card USB Card for Desktop
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20 Gbps PCI-Express Type C Expansion Card, ORICO PCI-Express to USB 3.2 Gen 2x2 (20 Gbps) for Windows 7/8/10/Linux/MAC OS, Compatible Slot: PCIe x4 (3.0), PCIe x8, PCIe x16 - Newegg.com
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Amazon.com: PCIe to USB 3.2 Gen 2 Adapter Card with 20 Gbps Bandwidth 5-Port (3X USB C -2X USB A) PCI Express Expansion Card Internal USB Hub PCI-E Add-on Cards Riser for