Tripp Lite Null Modem Serial RS232 Cable (DB9 F/F) 10-ft. (P450-010)

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

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

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

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

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

DTECH 10 ft DB9 Serial Cable Female to Female 9 Pin Straight Through (Black, 3 Meters)

C2G 02781 DB9 F/F Serial RS232 Mini Gender Changer/Coupler, Nickel

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

StarTech.com 6 ft Straight Through Serial Cable - DB9 F/F

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