SignalRGB is a free (freemium) unified lighting software that supports a wide range of niche and generic keyboard controllers. It eliminates the need for multiple manufacturer apps.
While shortcuts are easiest, you can download official drivers from the NOS Software Downloads page for more precise control on supported models like the how to change color on nos keyboard free
For deeper customization—like assigning colors to individual keys—you should check if your specific model has a dedicated driver. NOS provides free software for several of its popular gaming series. SignalRGB is a free (freemium) unified lighting software