Trust Verto, Right-hand, Vertical design, Optical, USB Type-A, 1600 DPI, Black Trust Verto. Form factor: Right-hand, Vertical design. Movement detection technology: Optical, Device interface: USB Type-A, Movement resolution: 1600 DPI, Buttons type: Pressed buttons, Buttons quantity: 6, Scroll type: Wheel. Power source: Cable. Product colour: Black