StarTech PCI1PEX1 PCI to PCI Express Adapter Card - 1 x PCI Express -PCI 32-bit 65030837835 | eBay
DELOCK 41857: Riser card, PCI Express x1 > PCI 32-bit 5 V with flexible, 13-cm at reichelt elektronik
PCI Express 2X RJ45 Gigabit Network Interface Controller Adapter for Windows 10,8.1,8,7,Vista,XP(32/64bit) and Windows Server Desktop PCs-PCIE NIC Card-PCIE Gigabit Network Adapter(FS-E2-Pro) - Newegg.com
DELOCK 41359: Riser Card Mini PCI Express > PCI 32 Bit - 5 V left insertion at reichelt elektronik
PCI / PCI Express / PCI-X Expansion Slots
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