CS Optical 3button ScrollPoint mouse PS2 and USB Slate Blue SCA
IBM CS Mouse PS2+USB Scrollpint optical SCA, Optical, USB Type-A + PS/2, 400 DPI, Blue
IBM CS Mouse PS2+USB Scrollpint optical SCA. Movement detection technology: Optical, Device interface: USB Type-A + PS/2, Movement resolution: 400 DPI, Buttons quantity: 3. Product colour: Blue