DELL AW958, Right-hand, Optical, USB Type-A, 12000 DPI, Black, Silver DELL AW958. Form factor: Right-hand. Movement detection technology: Optical, Device interface: USB Type-A, Movement resolution: 12000 DPI, Buttons type: Pressed buttons, Buttons quantity: 13, Scroll type: Wheel, Acceleration (max): 50 G. Illumination color: Multi. Power source: Cable. Product color: Black, Silver