Interlink Electronics presents its VersaPad touchpad with serial/PS/2 style and pan & scroll control.VersaPad's patented Semiconductive Technology delivers versatility previously unavailable in conventional touchpads. VersaPad from Interlink Electronics features pressure sensitive Pan and Scroll Bars for one-touch browsing and editing and personalizable Toolbar Pop-UP utility to capture sketches and signatures. Use your finger for smooth cursor control. Or use an ordinary stylus for drawing or precision pointing. Pressure-sensitive Pan & Scroll arrows regulate pan and scroll speed.