Mini Industrial Pointing Device , USB Interface Trackball

Industrial Pointing Device , USB Interface Trackball Quick Detail: 1. Stainless steel trackball 2. Waterproof, dust-proof and vandal resistant 3. CE,FCC,ROHS,IP65 certificate 4. USB or PS/2 interface 5. Trackball Frequency: X:>200dpi Y: >190dpi (Mechanical trackball) X:>800dpi Y:> 800dpi (Optical trackball ) Description: Features Stainless steel trackball Water, dust and vandal resistant Etching and inking lettering Brushed surface Compatible with WINDOWS98/ME/2000/XP