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

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

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)

StarTech.com 3m Black Straight Through DB9 RS232 Serial Cable - DB9 RS232 Serial Extension Cable - Male to Female Cable

StarTech.com DB9 to DB25 Serial Cable Adapter - F/M

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

YCS Basics Black 10 Foot DB9 9 Pin Serial / RS232 Male / Female Extension Cable

Top-Longer 9 Pin DB9 Female to Female/Male to Male Mini Gender Changer Coupler Adapter Connector Pack of 4

CablesOnline DB9 Null Modem Male to Female Slimline Data Transfer Adapter/Gender Changer , (2-Pack) (AD-N04M-2)

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

Sysly DB9 Male and DB9 Female D-SUB Adapter Plate Connector RS232 Serial to Terminal Board Signal Module