You will need a USB to Serial Port Adapter. There are many different adapters on the market today that plug into a USB port on the computer and will function as a serial port for connecting to a Rotel component for updating.

It is important when selecting an adapter to make sure you install the latest available drivers for the adapter to ensure that the upgrades go smoothly. This is particularly important when using the adapters on newer operating systems such as Windows 8. We recommend ideally checking the website of the manufacturer for the latest drivers before connecting and installing the adapter.