EVGA brings you the world's first triple sensor mice with dual LOD sensors, paired with a Pixart 3389 optical sensor on the X17. Most gaming mice use the mouse's primary sensor or an additional LOD to detect the lift-off distance, while the EVGA X20/17 uses a more advanced 3-Dimension Array Tech. This system uses a triple sensor algorithm to detect the position where you lift the mouse off a surface and put the mouse back down, achieving the shortest and most accurate lift-off distance. EVGA's 3-Dimension Array Tech algorithm can detect within a minimum of 0.4 mm to a maximum of 3 mm from the mouse to the surface, dynamically adjusting the best power-off height. Customize the power-off height in different directions to achieve the most accurate gaming in the world with EVGA UNLEASH RGB software.