Standard optical mouse, 3 buttons + scrolling wheel, 80 cpi, PS/2 interface MT1075K-PS2 MT1075 it is a standard optical mouse featured with 3 buttons and scrolling wheel. Well working optical sensor with sensitivity of 800cpi allow for fast reaction and good precision of tracking. Classic proven shape guarantees a smooth work. This mouse is suitable for right- and left-handed users as well. Specifications:Optical mouse 800 cpi resolution Precision tracking 3 buttons & scrolling wheel Windows XP / VISTA 32-64 / Win7 32-64 compatible PS/2 interface