StarTech.com 6 ft Straight Through Serial Cable - DB9 F/F - Serial cable - DB-9 (F) to DB-9 (F) - 6 ft (MXT100FF)

Monster CIT LGY-50 Large Diameter Gray Cable-It Wire Management System (50 feet)

Monster CIT MWH-8 Medium Diameter White Cable-It Wire Management System 8 feet

Monster CIT MGY-8 Medium Diameter Gray Cable-It Wire Management System (8 feet)

Monster CIT SBK-8 Small Diameter Black Cable-It Wire Management System (8 inches)

StarTech.com DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9-Pin RS232 Null Modem Cable, 2-Meter, Black (SCNM9FF2MBK)

Tripp Lite Null Modem Serial RS232 Cable (DB9 F/F) 6-ft. (P450-006)

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

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

C2G/Cables to Go 02781 DB9 F/F Serial RS232 Mini Gender Changer (Coupler)

StarTech.com DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9-Pin RS232 Null Modem Cable, 1-Meter, Black (SCNM9FF1MBK)

Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)

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)

BeElion 2PCS Serial RS232 DB9 Pin Gender Male to Male Adapter,Null Modem Gender Connectors

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