Amazon.com: Green-utech 5FT USB Type A to RS-232 9-Pin DB9 Male Serial Adapter Cable for Windows Mac OS Linux FTDI Chipset (5FT, USB Type A to DB9) : Electronics
DB9 RS-232 Male to Blunt - All 9 Pins - 22 AWG Plenum - Serial Breakou - Custom Cable Connection
Null Modem Cable Serial RS232 9 Pin DB9 Male to Female Gender Changer Lead UK 8944849703093 | eBay
RS232 Pinout | DB9 pinout
Sabrent USB 2.0 Type-A Male to RS-232 DB9 Serial 9-Pin SBT-FTDI
10PCS RS232 Serial Port 9 Pin DB9 Connector Male Solder Soldering Plug | eBay