Amazon.com: StarTech.com 4-Port PCI Serial Card with 16550 UART - PCI RS232 Serial Adapter Card (PCI4S550N): Electronics
ST PCI2S550: 2 Port PCI RS232 Serial Adapter Card at reichelt elektronik
China 4-port RS232 RS-232 Serial Port COM to PCI-E PCI Express Card Adapter Converter on Global Sources,PCI Express,4-port PCI Express,PCI Express Card
PCI Serial Card 4 Port RS232 RS-232 DB9 Pin COM Adapter Multi Serial Ports Card IOC485 Chipset with Fan-out Cable | Serial port, Computer components, Port
StarTech.com 1 Port Low Profile Native RS232 PCIe Serial Card w/16550 UART - PEX1S553LP - Network Adapters - CDW.com
StarTech com PCI1S550 1 Port PCI RS232 Serial Adapter Card with 16550 UART
Shentek PCIe ESD 2 port RS232 Serial PCI Express Card -
VALUE PCI-Express Adapter, 2x Serial RS232 D-Sub 9 + 1x Parallel EPP/ECP Ports - SECOMP International AG
VALUE PCI Adapter, 2x Serial RS232, D-Sub 9 Port - SECOMP International AG
2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART | Dell Canada
8 Port PCIe RS232 Serial Adapter Card - Serial Cards & Adapters | Belgium
5V PCI 2 Port RS232 (1xDB9, 1xDB25) - CC-250 - Brainboxes - Industrial Ethernet IO and Serial
RS232 RS 232 Serial Port COM & DB25 Printer Parallel Port LPT to PCI E PCI Express Card Adapter Converter ASIX AX99100|Add On Cards| - AliExpress
File:RS232 PCI-E.jpg - Wikimedia Commons
StarTech.com 2-Port PCI Express Serial Card with 16C1050 UART - RS232
4 Port RS232/422/485 PCIe Serial Card - Serial Cards & Adapters | Denmark
2 Port RS232 RS 232 Serial Port COM to PCI E PCI Express Card Adapter Converter IOCREST 2 port Serial Low Profile Bracket|rs-232 adapter|rs232 to rs422 converterrs232 video - AliExpress