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 next time. After configuration, it can be used by plugging into another computer. Multiple keyboards can be connected to the computer and used normally. Simple software operation; setup can be done directly with a Windows system. Functions similarly to a standard keyboard, suitable for most scenarios and supports some BIOS settings. Supports multiple language options. Keys are detachable, allowing for easy plug and unplug, convenient for office use and portability. Function introduction: The keyboard has programmable keys, please read carefully. Any key on a standard Windows keyboard can be remapped and fully replaced. One-key shortcut functions can be set to replace multiple key presses with a single press, improving efficiency. One-key macro functions can be programmed, where pressing one key executes a sequence of keystrokes. Each macro key supports up to 34 keystrokes with adjustable interval timing. Example: one-click login or password input. Multimedia keys can be customized for volume control, play/pause, next/previous track, etc. 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 representation. Measurement error allowed is +/- 1-3 cm.