O3C OSU SayoDevice Keyboard The O3C OSU SayoDevice Keyboard features cutting-edge technology and customizable options, designed to enhance your typing and gaming experience. Key Features: Hall Magnetic Linear Switches Equipped with 3 Hall magnetic linear switches for smooth, responsive key presses. The switches are replaceable and support any Hall magnetic switches. Calibration is easy with just a simple click. Customizable Knob Includes a versatile knob that can be mapped to any key function. For example, you can set it to scroll through a song list or adjust volume levels. IPS Color Screen Features a 0.96-inch IPS color screen with a 160x80 resolution, clearly displaying key range and button counts for a more interactive experience. Customizable Display The first line of text on the screen can be personalized, allowing you to display your own ID or custom message. USB 2.0 High-Speed Connection Offers fast and stable connectivity via TYPE-C with USB 2.0, supporting up to 8000Hz polling rate for optimal performance. Important Notice: Calibration Required: The keyboard may require calibration before use, either for the first time or after a firmware update. Detailed steps for calibration are provided in the user manual.