CSNULL9FF-5A - L-com - Computer Cable, D Sub 9 Position Receptacle, D Sub 9 Position Receptacle
RS232 Shielded Null Modem Cable Metal Hood DB9 | Black Box
StarTech.com USB to Serial Adapter - Null Modem - FTDI USB UART Chip - DB9 (9-pin) - USB to RS232 Adapter - Add a Null Modem RS232 serial port to your laptop
USB To Null Modem FTDI Serial Adapter, 18-in. | Eaton
Null Modem Serial DB9 Serial Modular Adapter Kit, 2x (DB9F to RJ45F) | Eaton