Do I need a Steinberg Key to run Cubase 5 or Studio 5?
Yes, Cubase 5 is USB key/dongle protected. The Steinberg Key is a small plastic device about 1.5″ long that plugs into a USB port and stores the license for running the software. Any Steinberg key will work–if you are upgrading, you will put your new license onto the key you already have. New and Educational versions will come with a dongle, with the license already installed.