A technician is troubleshooting a laptop that is failing to communicate with an older CNC machine via a physical connection. The CNC machine uses a 9-pin port for communication purposes. Which of the following types of cable should the technician use to replace the defective one in order to re-establish a successful connection?
Serial Cable (RS-232)
VGA Cable
Ethernet Cable (RJ-45)
Universal Serial Bus (USB) Cable