RAZER Taipan USB Gaming Mouse - Black Mouse Grip Style: Claw, Fingertip and Palm Maximum dpi: 8200 dpi Hand Orientation: Both Hands Operating System Supported: Windows 10 / Windows 8 / Windows 7 / Mac OS X (v10.8 - 10.11) System Requirement: PC / Mac with USB port Internet connection 100MB of free hard disk space Razer Synapse 2.0 registration (requiring a valid e-mail), software download, license acceptance, and internet connection needed to activate full features of product and for software updates. After activation, full features are available in optional offline mode.