SCREW LOCKING NULL-MODEM CABLE: This crossover cable features thumbscrews that prevent accidental disconnection which can lead to data loss.
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, Black, F/M (9FMNM-3M-RS232-CABLE)
Startech 3M Rs232 Serial Null Modem Cable Crossover Serial Cable W/Al-Mylar Shie
StarTech 3m RS232 Serial Null Modem Cable, Crossover Serial Cable w/Al-Mylar ...
DTECH DB9 Female to DB9 Female 3M RS232 Serial Cable Null Modem Cord Cross TX RX line for Data Communication PC Computer (10 Feet, Black)
StarTech.com 3m Black Straight Through DB9 RS232 Serial Cable - DB9 RS232 Serial Extension Cable - Male to Female Cable (MXT1003MBK)
Startech.Com 3M Black Straight through DB9 RS232 Serial Cable - DB9 RS232 Serial
