Logitech G502 Proteus Spectrum RGB Tunable Gaming Mouse, 12,000 DPI On-The-Fly DPI Shifting, Personalized Weight and Balance Tuning with (5) 3.6g Weights, 11 Programmable Buttons Advanced optical gaming sensor (PMW3366): Logitech's most accurate and responsive optical sensor precisely translates hand movements onscreen Tunable weight and balance: Repositionable 3.6G weights for superior fit and feel. Resolution: 200  12,000 dpi RGB customizable lighting: Match your style and environment with up to 16.8 million colors.System Requirements:Windows 7 or later,Mac OS X 10.10 or later,Chrome OS Easy-to-program Logitech Gaming Software: Customize lighting, surface tuning, button macros and more. Max. acceleration: &gt; 40 G5 Customizable controls: 11 programmable buttons and adjustable hyper-fast scroll wheel for fast, accurate maneuvers Responsiveness USB data format 16 bits/axis, USB report rate 1000 Hz (1ms), Microprocessor 32-bit ARM