Welcome to our store! [9 Keys 1 Knob]: The design with 9 keys and 1 knob allows users to perform more complex operations. Adjusting volume, screen brightness, or other related settings via the knobs is easy and enhances the keyboard user experience. [Custom Macro Programming]: The keyboard supports custom macro programming, allowing you to bind frequently used operations or specific commands to key presses to perform multi-step operations with a single key, improving the efficiency of your work or gaming. [Replaceable Design]: The keyboard utilizes replaceable technology, enabling users to swap keycaps or switches at any time to quickly adapt to different scenarios. [Mechanical Keyboard with Blue Switches]: The mechanical keyboard uses blue switches with distinct tactile feedback, quick response, and durability, providing enhanced performance in competitive gaming with clicky and rapid combo operations. [Key Line Separation]: The keyboard features a key line separation design, allowing users to arrange keyboard wiring more flexibly according to their usage habits, reducing cable clutter and better organizing the desk. Item Type: Mini 9-Key Keyboard with Knob Material: Acrylic Connection: Wired Connection (Key Line Separation) Cable Length: Approx. 1 m / 3.28 ft Package Includes: 1 x Mini 9-Key Keyboard 1 x Data Cable 1 x USB Drive 1 x User Manual If you encounter any product issues after receiving the goods, such as damage or incorrect quantity, please contact the seller immediately. We will do our best to provide you with satisfactory customer service.