Optical Notebook Mouse Ergonomic 5-button notebook mouse with USB connection. The special coating of the lateral surfaces optimizes the grip of the mouse and the automatic cable realer makes it easier to transport. 800 dpi resolution 5 buttons with scroll wheel (programmable, software available for downloading) For Windows® 98SE, 2000, ME, XP, Vista For Mac OS 9.x or later For Linux kernel 2.6.x.y and later