YCS basics Black 6 Foot DB9 9 Pin Serial / RS232 Male/Female Extension Cable

StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable F/M - DB9 Male to Female - 9 pin Null Modem Cable - 1x DB9 (M), 1x DB9 (F), Black (SCNM9FM2MBK)

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

DB9 null modem male 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)

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

SF Cable: DB9 Male to 2 Female Serial Rs232 Splitter Cable 12 Inches

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

Your Cable Store 6 Foot DB9 9 Pin Serial Port Cable Female/Female RS232

SIENOC 9 Pin RS-232 DB9 Male to Male/Female to Female Serial Cable Gender Changer Coupler Adapter (5 packs of male)

DTECH DB9 9 Pin Serial Cable 6ft Male to Male RS232 Straight Through