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Optical Sensor technology
Sensor Resolution: 300
Interface: USB / PS2
Number of buttons: 4,System Requirements : PC - Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10,Mac : Mac OS X 10.5 or later
Supported OS: Windows Vista, Windows 7, Windows 8, Windows 10, Mac OS X 10.5 or later, Chrome OS
This high-performance trackball optical mouse offers a contoured shape and ambidextrous design for improved comfort for either hand during long periods of use. Smooth fingertip control: just a slight touch on the trackball lets you control the cursor with superior speed and accuracy. Patented Marble optical technology offers enhanced precision, ensuring faster response and smooth, reliable tracking. The larger size of the trackball improves control while reducing hand and wrist motion. Four customizable buttons for easy access to key tasks. Connector/Port/Interface: PS2USB Left/Right Hand Use: Left/Right Mouse Technology: Optical.
Logitech Trackman Marble Mouse Four-Button Programmable Dark Gray - B001F42MKG