DB9 Male to DB9 Female Serial RS232 Null Modem Adapter | Serial RS232 | Computer Cables | USB and PC
Rocstor Premium 5ft 1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI
Async RS232 CATx ShortHaul Modem DB25 | Black Box
StarTech DB9 RS232 Serial Male to Male Null Modem Adapter NM9MM
75ft Serial RS232 DB9 Null Modem Cable with Low Profile Connectors F/F - In-Wall CMG-Rated - BCI Imaging Supplies
RS232 Serial Wifi Modem for Vintage Computers V4 from The Old Net on Tindie
Null Modem Cables — Connective Peripherals - Global Store
DB9 Female to Female NULL Modem Gender Changer RS232 to RS232 - PLCCable.com - Automation Supplies and PLC Tools
5' USB to RS-232 DB9 Serial Adapter Cable – Serialio.com
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
Industrial 1 Channel Bidirectional RS232 Digital Fiber Optic MODEM DB9 MM FC 2KM | eBay