LOGITECH TRACKBALL USB MARBLE
Product ID: 57670
• Model: TRACKMAN MARBLE
• Sensors: Optical
• Type: USB/Wired
• Movement Resolution: 300
• Wireless: -
• Buttons: 4
• System requirements: WindowsR XP, Windows VistaR, Windows 7, Windows 8, Windows 10; Mac OS X 10.5 or later;Chrome OS
• Color: Dark Silver
• Dimensions: 86.5 x 165.4 x 42.3 mm
• Warranty: 36 Months
http://www.logitech.com/en-us/product/trackman-marble