HIRALIY GT104 Backlit Mechanical Gaming Keyboard with Blue Switch (Black+Sliver) Anti-ghosting keys mechanical keyboard, constructed with floating keys, blue switches (Gaote switch/ Otemu switch), plug and play, No driver needed, programming is not supported GT104 mechanical gaming keyboard adopts N-Key-rollover technology, no conflict, no slowness for better gaming performance (Mac OS can only support 6-key-rollover) Adjustable multiple backlit mode with N-key backlit ; offering 5 levels of brightness and color changing speed by pressing FN+ESC Gold plated interface with magnet ring,to guarantee safe and stable data transmission, braided cord to greatly enhance its durability To lock WIN key ,press FN+F12, and the backlit of gaming keys will light up. This will avoid accidentally touching WIN key in the game and missing any winning opportunity; Compatible with Win7 / Win8 / Vista / Mac / IBM PC