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, you don't need to set it again next time. After configuration, it can also be used by plugging into another computer. Multiple keyboards can be connected to the computer and used normally. Simple software operation, you can directly set it up using a Windows system. Functions similarly to a standard keyboard, suitable for most situations and supports some BIOS settings. Supports multiple language options. Detachable key lines allow for easy plug and unplug, convenient for office use and portability. Function introduction: The keyboard cannot be programmed for all functions, please read the description carefully. Any key on a standard Windows keyboard can be remapped and fully replaced. One-key shortcut function available, press once to replace multiple key combinations, improving efficiency. One-key macro function available, pressing one key can execute a sequence of keystrokes. Each macro key supports up to 34 keystrokes with customizable delay intervals, such as one-click password entry. Supports programming of multimedia keys, including volume control, track navigation, play/pause, and more. Parameters: Switch type: Red switch Compatible systems: Windows, macOS, Linux Keyboard layout: 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 item. Measurement error allowed is +/- 1-3 cm.