Null Modem Cable, DB9 Male to Female, 6' — Tera Grand
Startech .com 1m Black DB9 RS232 Serial Null Modem Cable F/FConnect your serial devices, and transfer your files1m DB9 Null Modem Cable... SCNM9FF1MBK - Corporate Armor
DB9 Male to Male NULL Modem Gender Changer RS232 to RS232 - PLCCable.com - Automation Supplies and PLC Tools
Amazon.com: StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft (SCNM9FF) : Electronics
Crossover or "Null Modem" vs. Straight Through Serial Cable - Decisive Tactics, Inc.