Logitech G1
Price: £20
Size: 115mm x 60mm x 33mm
Shape: Symmetrical
Buttons: 4
Wheel: Vertical
Sensor: Optical
Resolution: 800 DPI
USB Rate: 125 Hz
Linear Limit: 1.68 m/s (66"/s)
Skipping Point: 3.30 m/s (130"/s)