USB to RS232 PLC Programming Cable Special PLCTalk.net - PLCCable.com - Automation Supplies and PLC Tools
StarTech.com 6in USB 2.0 A to USB 4 Pin to Motherboard Header Adapter F/F - USBMBADAPT - Cable Connectors - CDW.com
Amazon.com: Letotech Cross Wired USB Serial Cable FTDI ft232r USB RS232 to DB9 Female Adapter Null Modem Cable PC Control TV Cable (Null Modem pinout) : Electronics
Olimex USB-SERIAL-CABLE-F OLinuXino Serial Console Cable | Rapid Online
USB-SERIAL-F
Amazon.com: Tripp Lite 18in USB to Null Modem Serial Adapter Cable FTDI w/COM Retention M/F 18" (U209-18N-NULL) : Electronics
HP JY728A Aruba Micro-Usb 2.0 Console Adapter Cable - Newegg.com
3ft USB to Serial Cable/RS232 Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Europe
3ft (0.9m) DB9 F/F Serial RS232 Cable - Black | Serial RS232 | Computer Cables | USB and PC