About this item Cool LED Backlighting: NK680 gaming keyboard is fixed lighting color.There is 19 built-in backlights mode with shortcut keys to adjust backlight brightness and speed. Due to the iterative transparent word colour of the keycap that you may receive a Mixed light or single light. Compact & Practical 60% Layout: NK680 mechanical keyboard features a 68-key design with separate arrow keys and commonly used control keys. The included power cord is plug-and-play. Combines practicality, full functionality and portability . Mechanical Red Switch: Linear red switch without a tactile bump. A favorite for gamers who require quick responses with minimal resistance or for those seeking a quiet typing experience. Efficient & Comfortable Operation: The NK680 68 Percent keyboard based on ergonomics, scientific stepped keycap design provides maximum comfort. Support full key anti-ghosting.Keep you away from lag and enjoy efficient and smooth gaming typing. Compatibility & After-sales Service: Suitable for Windows 11/10/8/7/XP. Mac OS, Vista, and Linux are compatible with typing and office only.TMKB product support one year warranty, if you encounter any problems, please feel free to contact us, give you a satisfactory answer within 24 hours.