ROCCAT Savu Mid-Size USB Wired Gaming Mouse Maximum dpi: 4000 dpi Hand Orientation: Right Hand Operating System Supported: Windows XP/Windows Vista 32/64-bit/Windows 7 32/64-bit System Requirement: USB 2.0 port Internet connection for driver installation Package Contents: ROCCAT Savu - Mid-Size Hybrid Gaming Mouse ROCCAT ID Card Quick-Installation Guide