Razer Diamondback
Price: 30
Size: 120mm x 60mm x 33mm
Shape: Symmetrical
Buttons: 7
Wheel: Vertical
Sensor: Optical
Resolution: 1600 DPI
USB Rate: 125 Hz
Linear Limit: 1.78 m/s (70"/s)
Skipping Point: > 4.5 m/s (177"/s)