If you are looking for a way to share your mouse and keyboard between multiple computers, you might be interested in Synergy. Synergy is a software that allows you to control different devices with one mouse and keyboard. It has different versions with different features and prices. In this article, we will show you how to activate Synergy with a serial key that you have purchased or obtained legally. We will also explain how to generate a serial key for non-commercial use if you want to try out Synergy Pro or Ultimate for free.