HID driver-free technology. Supports plug and play on Linux, macOS, and Windows 7 or later. Features internal memory to store settings without reconfiguration when switching computers. The detachable cable facilitates office carrying. Supports up to six simultaneous key presses and is compatible with various BIOS systems. Requires Windows system software for setup. Any standard Windows keyboard key can be remapped. Single keys can trigger multiple keystroke sequences or macros. Macro execution intervals can be adjusted. Multimedia functions including volume adjustment and media playback, as well as mouse button actions, can be programmed. Please note that since the keyboard shell is 3D printed, appearance texture may vary slightly between batches, which does not affect usability. Specification: Switch Type: Green. Compatible System: Windows, macOS, Linux. Type: USB Programmable Macro Keyboard. Colour: Black. Material: PLA. Package Contents: 1 Custom Keyboard, 1 Data Cable. Other items not included.