Your Cable Store 25 Foot DB9 9 Pin Serial Port Null Modem Cable Female/Female RS232

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Your Cable Store 25 Foot DB9 9 Pin Serial Port Cable Female/Female RS232

StarTech.com 10-Feet DB9 RS232 Serial Null Modem Cable F/F (SCNM9FF)

SIENOC 5pcs 9 Pin RS-232 DB9 Male to Male 5pcs Female to Female Serial Cable Gender Changer Coupler Adapter Pack of 10

Your Cable Store 25 Foot DB9 9 Pin Serial Extension Cable RS232

YCS Basics 25 Foot DB9 9 Pin Serial / RS232 Male / Female Extension Cable

YCS Basics 50 Foot DB9 9 Pin Serial / RS232 Male / Female Extension Cable

DB9 null modem female to female slimline data transfer serial port adapter 2 Pack

Sabrent USB 2.0 to Serial (9-Pin) DB-9 RS-232 Converter Cable, Prolific Chipset, Hexnuts, [Windows 10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P)

Your Cable Store 15 Foot DB9 9 Pin Serial Port Cable Female / Female RS232