SK6XDriver Version: 6.0.0.36
Compatibility: WindowsXP, Win7, Win8,  10 Compatible
Products: YUNZII SK61, YUNZII SK61S, YUNZII SK64, YUNZII SK64S, YUNZII SK71
With the SK6XPlus software you will be able to create, control and save into the keyboard’s memory all the functionality of your keyboard, including RGB Light effects, Macros, And any other customizations that you might desire. Changes applied in the software are carried on to other operating systems.

KC84Driver Version: 5.0.0.36
Compatibility: WindowsXP, Win7, Win8, 10 Compatible
Products: KC84, KC84S, Macaron, Rainbow
With KC84 software you will be able to create, control and save into the keyboard’s memory all the functionality of your keyboard, including RGB Light effects, Macros, And any other customizations that you might desire. Changes applied in the software are carried on to other operating systems.

(PS. there are 2 softwares linked below. We suggest you to download the second one if you bought the keyboard after Feb, 2021. If the software can't work, then please download the first one. For more help, please send us message to support@yunzii.com) 

KC84Keyboard Upgrade Software (ONLY FOR KC84)
Only use for the keyboard upgrade not the customize software, KC84S CAN'T USE THIS ONE!

KC84Keyboard Upgrade Software (ONLY FOR KC84S)
Only use for the keyboard upgrade not the customize software, KC84 CAN'T USE THIS ONE!

K620T(ONLY FOR K620T)
With the software you will be able to create, control and save into the keyboard’s memory all the functionality of your keyboard, including RGB Light effects, Macros, And any other customizations that you might desire.