Lenovo ThinkPad USB TrackPoint AR vs Lenovo ThinkPad USB TrackPoint SI

Comparison of ThinkPad USB TrackPoint AR, ThinkPad USB TrackPoint SI

17 specifications	A Lenovo ThinkPad USB TrackPoint ARView product	B Lenovo ThinkPad USB TrackPoint SIView product
Keyboardidentical
Recommended usage	Office	Office
Connectivity technology	Wired	Wired
Device interface	USB	USB
Pointing device	Pointing Stick	Pointing Stick
Designidentical
Adjustable keyboard height	Yes	Yes
Product colour	Black	Black
Featuresidentical
Cable length	1.2 m	1.2 m
Plug and Play	Yes	Yes
USB 2.0 ports quantity	1	1
Mouseidentical
Mouse included	No	No
System requirementsidentical
USB required	Yes	Yes
Operational conditionsidentical
Operating temperature (T-T)	10 - 40 °C	10 - 40 °C
Operating relative humidity (H-H)	8 - 80%	8 - 80%
Weight & dimensionsidentical
Keyboard dimensions (WxDxH)	313 x 220 x 19 mm	313 x 220 x 19 mm
Keyboard weight	460 g	460 g
Other featuresidentical
Compatible operating systems	Windows XP, Vista, 7	Windows XP, Vista, 7
Internal	No	No

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.