2 Port Serial 9pin Manual Switch Selector Box 2-way RS232 Female Serial port (RS232) 2:1 Seletor

2 Port Serial 9pin Manual Switch Selector Box 2-way RS232 Female Serial port (RS232) 2:1 Seletor

StarTech.com 1m Black Straight Through DB9 RS232 Serial Cable - DB9 RS232 Serial Extension Cable - Male to Female Cable (MXT1001MBK)