Note: Please download the latest version of the keyboard configuration software according to the website: (If you have any problems, please tell us in time)Windows--https://product_manual.s3.us-east-1.aws.com/MYKB.zip . Mac OS--https://product_manual.s3.us-east-1.aws.com/MYKB_For_MacOS.zip . Key Combinations: You can set "shift+" "alt+" "ctl+" "win+ " There are 36 key combinations available for setting. Mouse Function: New mouse function, you can control the cursor movement, click, slide function by button. RGB Backlight Keyboard:RGB backlight can be customized to the player's desired color. The backlight brightness can be adjusted/turned off. Dynamic effects can be summarized into 8, each dynamic light effect can be adjusted to 3 different speeds; In addition, you can adjust 30 levels of brightness, 32 levels of saturation, and 32 different colors (including 32 static monochrome and 32 static color) in the light effect.(NOTE: there is no support for using HUB). 4 Layers of Custom Configurations: Built-in MCU, after setting the keyboard keys, they can be stored in the keyboard's MCU without resetting the keyboard. 4 layers of configurations can be saved to handle multiple use cases. Not only for gamers, but also for many other types of users, including designers and video editors 4-Layer Custom Configuration: Built-in MCU that stores keyboard keys in the keyboard's MCU after they have been set up, without having to reset the keyboard or even change computers. Four layers of configurations can be saved to handle multiple use cases. Not only for gamers, but also for many other types of users, including designers and video editors. Macro Keys: There are 16 buttons for advanced macro functions. Macro functions can be used in tandem and support up to 349 key commands. Delayed commands can be added for various complex use cases such as: Office, CAD/Ae/Pr/Ps shortcuts, various user accounts and passwords, game tricks, basic codes for programmers. For example, the Set button will trigger a series of actions such as "Ctrl + A 0.5s Ctrl + C 0.5s Ctrl + V". All 48 Keys are Programmable: All keys are programmable. Custom programmable key functions include regular 104 buttons, Web navigation buttons, multimedia shortcuts, keyboard lock, Windows lock, etc. Each button can be set to any one of these buttons. You can connect both the keyboard (Plug and Play) and the 104-key keyboard to the same computer and they will not interfere with each other.