Amazon.com: FebSmart 4 Ports Superspeed 5Gbps USB 3.0 PCI Express Expansion Card for Windows 11, 10, 8.x, 7, Vista, XP Desktop PCs, Built in Self-Powered Technology, No Need Additional Power Supply (FS-U4-Pro) :
Amazon.com: 2 Port M.2 SSD to PCI-e x1 adapter B or B+M key (SI-PEX40115) : Everything Else
PCIe x1 to 19Pin USB 3.0 Header and Type E (A Key) Card,USB Front Panel Adapter, for 1 Front Panel USB A, 1 Front Panel USB C, USB 3.0 5Gpbs for Windows MacOS Linux
Amazon.com: Syba 4 Port SATA III PCI-e 2.0 x1 Controller Card Marvell 9215 Non-Raid with Low Profile Bracket SD-PEX40099 : Electronics
Amazon.com: I/O CREST 2 Port SATA III PCI-e 2.0 x1 Controller Card Asmedia ASM1061 Non-Raid with Low Profile Bracket SY-PEX40039 : Electronics
Dual Port Gigabit Ethernet Converged PCI-E x1 Card,2X RJ45 Gigabit Network Interface Controller Adapter,with 82575EB Chipset for Desktops,Work Stations,Servers, with Low Profile Bracket.
Amazon.com: BEYIMEI PCI-E 1 to 4 PCI-Express 16X Slots Riser Card,PCI-E 1X to External 4 PCI-E USB 3.0 Adapter Multiplier Card for Bitcoin Mining : Electronics
Amazon.com: MZHOU PCI-E to USB 3.0 PCI Express Card incl.1 USB C and 2 USB A Ports,Adding M.2 SATA III SSD Devices to a PC or Motherboard Using M.2 NVME to PCIe