RME HDSPe AIO | 32-Channel ADAT PCI Express Card | Pro Audio LA
Amazon.com: LinksTek 2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs-PCIE Serial Port Card (PCIE-SE2) : Electronics
Amazon.com: Sintech PCI-E Express 1X to PCI 32bits Adapter with 15CM Flex Cable : Electronics
Delock Products 90063 Delock Riser Card PCI Express x1 to 1 x PCI 32 Bit 5 V Slot