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
StarTech 10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M (
StarTech.com 10 ft DB9 RS232 Serial Null Modem Cable F/M - SCNM9FM - Serial Cables - CDW.com
6 FT Null Modem Cable - DB9 M/F | Computer Cable Store