Califone X-keys O-Trac Dual USB PS/2 Trackball Black
- PS/2 Connectivity via 120" Cord
- Large, High-Density Trackball
- Three Buttons
- Ergonomic Design
- For Right/Left-Hand Use
- Accommodates Hands of All Sizes
- Actuation Force: 71.4g
- Stainless Steel Rollers
- Windows, Mac & Linux Compatible
- ABS Molded Body