IOCREST PCI-Express Multi I/O Controller PCI Express Serial Card - SY-PEX15034 | eBay
IOCREST PCI-Express Multi I/O Controller PCI Express Serial Card - SY-PEX15034 | eBay
Great-Q High quality MOSCHIP PCI express 4 ports Serial PCI-e 1x card Multi RS232 DB9 COM port to PCIe I/O riser card - Price history & Review | AliExpress Seller - HongYaoQuan
Mecer PCI-e Multi I/O Card PCE9901-2S1P - HugePC Computer Distributors
Moschip Mcs9865 Serial Rs-232 2 Ports Pci Controller Card Pci To 2-port Db9 Com Device Card Converter + Low Profile Bracket - Add On Cards & Controller Panels - AliExpress