On Razer laptop, it may come pre-installed.
One of the advantages of using Razer Synapse is the cloud support.
Up to four profiles can be saved in on-board storage.

Razer Hypershift is another cool feature of Razer Synapse that expands the number of functions that your keyboard has.
It works by adding secondary functions to the keys.
Each key on your keyboard executes a certain action when it is pressed.

Not all keys can be configured to have secondary function, though.
Razer Synapse will let you know which keys it can and cannot customize.
Your Razer mouse can be calibrated to a surface too.
The properties of the surface will be recorded by the sensor.
As you move your mouse, its sensor detects the variations on the surface.
All these inputs help the mouse sensor to react better, giving you another edge for your gaming experience.
Razer Synapse has a section that allows you to control the speed fan of your Razer laptop.
Its ability to adjust the refresh rate of your laptop display is also helpful to reduce the battery consumption.
If there is a problem someday, you could always consult it with Razer community around the world.
There are online forums dedicated to discuss everything about Razer devices and software.