ErgoTrak 3 Button Trackball
- ErgoTrak3 Button Trackball is both Mac USB and PC USB compatible, and comes with a PS/2 connector.
- Opto mechanical technology for highly accurate pointing.
- Large button design for comfortable use.
- Tactile micro switches for highly reliable tactile sound and feeling.
- Removable retaining ring for easy ball removal and roller cleaning.
- Scrolling, Zooming and some other functions under Window environoment.
- Detachable Palm Support.
- Compatible OS: 98 / 2000 / ME / XP .
- Dimension: 7.6 x 4.7 x 2.4(L*W*H)