Incase Wired USB-A Basic Optical Mouse, Ambidextrous, Optical, USB Type-A, 800 DPI, Black Incase Wired USB-A Basic Optical Mouse. Form factor: Ambidextrous. Movement detection technology: Optical, Device interface: USB Type-A, Movement resolution: 800 DPI, Buttons type: Pressed buttons, Buttons quantity: 3, Scroll type: Wheel. Power source: Cable. Product colour: Black