StarTech.com 3m RS232 Serial Null Modem Cable, Crossover Serial Cable w/Al-Mylar Shielding, DB9 Serial COM Port Cable Female to Male, Compatible w/DTE Devices | www.publicsector.shidirect.com
Dtech Db9 Rs232 Serial Cable Male To Female Null Modem Cord Full Handshaking 7 Wire Crossover For Data Communication - Audio & Video Cables - AliExpress
6ft (1.8m) DB9 F/F Serial RS232 Null Modem Cable - Black | Serial RS232 | Computer Cables | USB and PC
Startech 1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI - Walmart.com
StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft - SCNM9FF - null modem cable - DB-9 to DB-9 - 10 ft
10 Foot DB9 Female / DB25 Male Null Modem Serial Cable RS232
Null Modem RJ45-DB9 (Female) Adapter for C2-RJ45 Console Cable - Get Console Shop
Serial Port and Modem Cables
Crossover or "Null Modem" vs. Straight Through Serial Cable - Decisive Tactics, Inc.