It's hard to find serial cables since
serial ports aren't widely in use. There is still plenty of technology that implements the serial DB-9 connection and it's important to be able to connect to them. You can use inexpensive telephone cable to extend your serial device from your computer. This enables you to choose the length you want.
You can also choose the pin-out you want for your Modular Adapter. This is perfect if you want to change the pin-out on one end to make a null modem cable or use the cable as a straight through cable. This adapter is perfect for administrators that need to have a null modem cable or a straight cable but don't want to carry a bunch of bulky cables. These adapters let you use what you need while keeping the amount of wire you carry.
