HID drive-free, after setting up on Windows 7 and above, it can be plug and play on Linux and macOS. 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. The computer can be connected to multiple keyboards and used normally. Simple software operation allows direct setup; you only need to prepare the system. Nearly 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. Detachable cable design allows easy plugging and unplugging, convenient for office use and portability. NOTE: The keyboard cannot be programmed for every possible function. Any key on the standard keyboard can be remapped and fully replaced. One-key shortcut function can be set to replace multiple keystrokes, reducing repetitive input and improving efficiency. One-key macro operation can be programmed. Pressing a single key can simulate multiple sequential keystrokes. Each macro supports up to 34 key commands with adjustable delay intervals. For example, one-click password entry. Supports programming of multimedia keys such as volume up/down, next/previous track, play/pause, etc. Mouse left, middle, and right button functions can be assigned to keys, effectively replacing mouse operations. Note: Since the keyboard case is 3D printed, appearance texture may vary slightly between batches, but this does not affect performance or functionality. 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. Note: Lighting effects and display differences may cause slight variations in color representation.