Hypertec M-SV-R, Right-hand, Optical, USB Type-A, 1200 DPI, Black, Silver Hypertec M-SV-R. Form factor: Right-hand. Movement detection technology: Optical, Device interface: USB Type-A, Movement resolution: 1200 DPI, Buttons type: Pressed buttons, Buttons quantity: 3, Scroll type: Wheel. Power source: Cable. Product color: Black, Silver