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 the next time. After configuration, it can also be used by plugging into another computer. The computer can be connected to multiple keyboards and used normally. Simple software operation; you can directly set it up using a Windows system. Almost identical to a standard keyboard, suitable for most situations and supports some BIOS functions. Multi-key rollover without ghosting, supports up to 6 keys pressed simultaneously with full response. Key lines are separated, allowing for easy plug and unplug, convenient for office use and portability. NOTE: The keyboard cannot be programmed for all possible functions. Any key on a standard Windows keyboard can be remapped and fully replaced. One-key shortcut setup allows single-press access to complex key combinations, reducing the need to press multiple keys. One-key macro programming is supported; pressing one key can simulate multiple sequential keystrokes. Each macro supports up to 34 key entries with adjustable interval timing, such as one-click password entry. Supports customization of multimedia keys including volume control, track navigation, play/pause, and more. Left, middle, and right mouse button functions can be assigned, effectively replacing basic mouse operations. NOTE: Since the keyboard housing is 3D printed, appearance texture may vary between batches, but this does not affect performance. Switch type: Green switch Compatible systems: Windows, macOS, Linux Type: Custom One-Key USB Programmable Macro Keyboard Color: Black Material: PLA Package Contents: 1 x Custom keyboard 1 x Data cable Only the items listed are included; other accessories are not part of the package.