Features: HID drive-free, after setting up on Windows 7 and above, it can be plug and play on Linux, macOS, and Windows. With memory function, no need to set up again the next time. After configuration, it can be used when connected to another computer. Multiple keyboards can be connected to the computer and used normally. Simple software operation, setup can be done directly, only requires a Windows system. Similar to a standard keyboard, suitable for most situations and supports some BIOS settings. Supports multiple language options. Keys are separated, allowing for easy plug and unplug, convenient for office use and portability. Function introduction: The keyboard allows customization of keys, but not all functions can be set. Thank you for reading carefully. Any key on a standard Windows keyboard can be programmed and fully replaced. One-key shortcut functions can be set, allowing single press activation instead of multiple key combinations, improving efficiency. One-key macro functions can be programmed, where pressing one key simulates multiple keystrokes in sequence. Each macro supports up to 34 key inputs with customizable delay intervals. Example uses include one-click password entry. Multimedia functions can be set, such as volume up/down, next/previous track, play/pause, and more. Parameters: Switch type: Red switch Compatible systems: Windows, macOS, Linux Keyboard layout: Double bond / Single bond Material: Plastic Color: Black Package Contents: 1 x Keyboard 1 x Data cable Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual product. Measurement error allowance is +/- 1-3 cm.