5+1 buttons, Wide Scroll, 800-1200-2400-3200 dpi Color Shift (Red-Blue-Green-Purple, ! in Triangle), Pixart 3168 Optic Sensor, 125/250/500/1000Hz Polling Rate; USB 1.65m Thin Cable, Big Ergonomic, Rubberized Top, Symmetric Thumb Rest-Both Sides, Programmable Buttons, Macros