" NOTE: iCUE is required in the initial set up, afterwards you can choose to play with or without iCUE running. For optimal performance, please use iCUE firmware update v. 0.14.62 or newer Four rear, remappable paddles keep your thumbs on the sticks for faster reactions Five fully remappable G-Keys for advanced macros and Corsair iCUE integration Two unique side-mounted SAX buttons are designed to provide additional configurability and fit the natural placement of your fingers OMRON mechanical button switches operate like a mouse click for instant activations"