Kensington CI85M Wireless Notebook Mouse vs Kensington Orbit® Optical Trackball

Comparison of CI85M Wireless Notebook Mouse, Orbit® Optical Trackball

13 specifications	A Kensington CI85M Wireless Notebook MouseView product	B Kensington Orbit® Optical TrackballView product
Mouse1 differ
Device interfaceDiffers	RF Wireless	USB Type-A + PS/2
Movement resolutionKnown for one	1000 DPI	—Unknown — not stated by the source
ScrollKnown for one	Yes	—Unknown — not stated by the source
Ergonomicsidentical
Wireless rangeKnown for one	1.5 m	—Unknown — not stated by the source
Plug and PlayKnown for one	Yes	—Unknown — not stated by the source
Cable lengthKnown for one	—Unknown — not stated by the source	1.83 m
Poweridentical
Number of batteries supportedKnown for one	2	—Unknown — not stated by the source
Battery typeKnown for one	AAA	—Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 40 °C	—Unknown — not stated by the source
System requirementsidentical
Mac operating systems supportedKnown for one	—Unknown — not stated by the source	Yes
Other featuresidentical
Compatible operating systemsKnown for one	—Unknown — not stated by the source	-Windows 98, Me, 2000, XP, Macintosh OS 8 & 9 (USB). -Windows 95, 98, Me, NT, 2000, XP,Vista, Macintosh OS 10.1.5 (PS/2).

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.