Startech .com PCIe Card with Serial and Parallel Port, PCI Express Combo Expansion Adapter Card, 1xDB25 Parallel Port, 1x RS232 Serial Port -... PEX1S1P950 - Corporate Armor
RS-232 1-Channel High-Power Relay Controller with Serial Interface LOW COST - NCD Store
Amazon.com: Taidacent 12V TTL Serial Port Full-Color Light Strip Controller with Terminal Block WS2812B 5050 RGB LED Strip Control Serial Port Programmable RGB Controller : Tools & Home Improvement
8-Port RS-232 USB to Serial Adapter Data Control Box
RS-232 2-Channel High-Power Relay Controller with Serial Interface LOW COST - NCD Store
Virtual Serial Port Control - ActiveX and .Net for virtual COM port driver
StarTech.com - PEX2S953 - 2 Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-byte FIFO Cache - RS
Amazon.com: NOYITO DC 5V 12V 24V 1-Channel RS232 Serial Port Control Relay Module Multi-Function Delay Timer USB PLC RS232 Computer Control Switch : Electronics
RS232 SPI Click | Mikroe
Serial port controller
2 Old school gaming Joypad Game Pad Controller PC EP30007V Serial Port Green | eBay
I/O Controller 2 | HW-group.com
Serial port - Wikipedia
StarTech.com 2-Port PCI Express Serial Card with 16C1050 UART - RS232 - PEX2S1050 - Serial Adapters - CDW.com
Dual-Serial Port / RS-232 PCIe Card
Serial Port Control - Easy to use control intended for simplification serial port communication tasks in your projects.
2-Port PCI RS232 Serial Adapter Card DB9 - Serial Cards & Adapters | StarTech.com Europe
8-Port RS-232 USB to Serial Adapter Data Control Box - Coolgear
Use the serial port to control routers, modems and other devices.
I/O Controller 2 | HW-group.com
Microsoft SideWinder Gamepad 90873 15-pin Serial Game Port controller | eBay
