3-port RS232 card (3RS232a) for AM3440-Loop Telecom
DSD TECH SH-RS232A USB to RS232 Serial DB9 Adapter Cable with FTDI FT232 Chip for Windows,Linux,Mac OS(5.9FT/1.8M) : Amazon.co.uk: Computers & Accessories
EVOLVEO Serial RS232 & LPT PCIe, rozširujúca karta KAE-RS232-LPT | E-shop | Hacom.sk
Caterpillar 109-5737 Datalink RS232A Communication Module | eBay
MAX3232 RS232 A TTL SERIAL PORT CONVERTER MODULE
DSD TECH SH-RS232A USB to RS232 DB9 Serial Adapter Cable with FTDI FT232 Chip for Windows, Linux, Mac OS (5.9 FT/1.8 M) : Amazon.com.be: Electronics