Microsoft Comfort Mouse 4500 for Business - 4EH-00004,Lochness Gray

Microsoft Comfort Mouse 4500 for Business - 4EH-00004,Lochness Gray Hand Orientation: Both Hands Resolution (DPI): 1000 dpi Operating System Supported: Microsoft Windows 7, Windows Vista, and Windows XP (excluding Windows XP 64-bit) Macintosh Mac OS X v10.4.x - 10.6.x System Requirement: For a Microsoft Windows-based PC: Requires a PC that meets the requirements for and has installed one of these operating systems: Windows 7, Windows Vista, or Windows XP (excluding Windows XP 64-bit) 100 MB of available hard disk space IntelliPoint software version 7.1 For a Macintosh PC: Macintosh Mac OS X v10.4.x - 10.6.x 30 MB of available hard disk space IntelliPoint for Mac software version 7.1