?Compatibility and after-sales service? Compatibility and after-sales service Suitable for Windows11/10/8/7/XP. Mac OS, Vista and Linux are compatible with typing and office only. Our products support one year warranty, if you encounter any problems, please feel free to contact us, give you a satisfactory answer within 24 hours . ?Ergonomic Keyboard?The design of this mechanical gaming keyboard is based on ergonomics. Scientific stair-up keycaps design brings maximum comfort, keeping your hand in a most natural state to minimize hand fatigue after longtime use. Perfect for gamer, office worker, copywriter, typing teacher and editors. ?Full Anti-Ghosting ?Supporting simultaneous pressing of all keys without any conflicts, providing a fast and seamless feedback experience for efficient office work and competitive gaming. ?Cool LED Backlight? DK61SE mechanical keyboard is fixed lighting color, but not bland. You can switch between 19 built-in backlight modes and adjust the backlight brightness & speed via shortcut keys. ?Mechanical Red Switch?Red switches is linear and lighter that ideal for gaming where the low articulation force and linear path allow for quick successive keypresses. It is the best preference for gamers. ?Minimalism?The DK61se is a 61-key mechanical gaming keyboard with all functions implemented through the "FN" key combination. The ultra-compact structure allows you to maximize the use of desktop and mouse space.