Note: This software can only be run on for Windows system temporarily, as far as possible to download on computer PC, set the software to install, open the can be run directly, will automatically be stored in the chain plate set, again to support usb protocol such as for Linux, use on for OS X systems (note that antivirus software to release for the first time, set the trust file)!! How to Use: Plug and Play 4 Keys Mini Keypad Programmable Macro Mechanical Gaming Keyboard This one handed macro mechanical keyboard can make your work faster and more efficient, and make the game experience more comfortable and smooth. Besides, you can carry the macro keyboard anywhere due to the compact and elegant design. Good Assistant For Your Work!!!! Specification: Item Type: Programmable Keyboard Material: Acrylic Lighting Effect: RGB Key Type: 4 Key Mechanical Keyboard Applicable Equipment: Computer Universal Package List: 1 x Keyboard; 1 x Data Cable Game Helper Playing game through this mini programmable micro keyboard is very smooth, good helper for gaming. Key Features Mechanical Keyboard Shaft Switch Full key support hot-swappable shaft design, easy tapping, wear resistant, dustproof, high strength and durable. Non-slip Keypad 4 Keys Mini Keypad comes with 4 small paste non-slip pads, which can be attached to the four corners of the keyboard to prevent the keyboard from sliding back and forth when in use. Adjustable RGB LED 4 Key Mechanical Keyboard, fine workmanship, perfect style, RGB backlight, more gaming experience, full of technology. You can connect a OSU Gaming Keyboard (plug and play) and another keyboard at the same time on the same computer, they will not interfere with each other.