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: ITHOO 32 bit 33MHz Mini PCI-e to Dual PCI Expansion Card PCI Slot Support Capture Card Gold Tax Card Sound Card Parallel Port Card : Electronics
2U Riser w/ 2 x 32-bit and one PCI-Express x 16 good for Intel Se7525GP2, Supermicro X6DAL Series,Gigabyte GA-81915P-MF,GA-81915G-MF etc, Model # EJ-RC2UE133