Mechanical keyboard with OUTEMU linear red switches which give us soft sense for gaming comfort and can hold up to 50 million presses The response time is only 0.1s for instance response N-key rollover technology It is full RGB programmable keyboard with side RGB lighting It has extra multimedia keys and you can adjust the volume with roller controlDimensions:473x221x31mm Weight:1139g ±5 Cable length:1.8m Keys:109 Response time of switch: 0.1s Switch type: Outemu red mechanical switch Peak force: 45±10gf Maximum key life: 50000000 times Backlight light LED: Full RGB Compatible with: WIN2000, WIN XP, WIN VISTA, WIN7, WIN8, WIN10