Product comparison · 2 keyboards

Lenovo ThinkPad USB TrackPoint AR vs Lenovo USB Smartcard Keyboard SR

Key differences

Cable length
- ThinkPad USB TrackPoint AR:1.2 m
- USB Smartcard Keyboard SR:2.3 m
Keyboard dimensions (WxDxH)
- ThinkPad USB TrackPoint AR:313 x 220 x 19 mm
- USB Smartcard Keyboard SR:457 x 185 x 35 mm
Keyboard weight
- ThinkPad USB TrackPoint AR:460 g
- USB Smartcard Keyboard SR:1.06 kg
Compatible operating systems
- ThinkPad USB TrackPoint AR:Windows XP, Vista, 7
- USB Smartcard Keyboard SR:Windows XP, Vista

Differences highlightedShow differences only

Comparison of ThinkPad USB TrackPoint AR, USB Smartcard Keyboard SR
20 specifications	A Lenovo ThinkPad USB TrackPoint AR View product	B Lenovo USB Smartcard Keyboard SR View product
Keyboardidentical
Recommended usage	Office	Office
Connectivity technology	Wired	Wired
Device interface	USB	USB
Pointing deviceKnown for one	Pointing Stick	Unknown — not stated by the source
Keyboard form factorKnown for one	Unknown — not stated by the source	Full-size (100%)
Keyboard number of keysKnown for one	Unknown — not stated by the source	104
Designidentical
Adjustable keyboard heightKnown for one	Yes	Unknown — not stated by the source
Product colour	Black	Black
Features1 differ
Cable lengthDiffers	1.2 m	2.3 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)Known for one	8 - 80%	Unknown — not stated by the source
Weight & dimensions2 differ
Keyboard dimensions (WxDxH)Differs	313 x 220 x 19 mm	457 x 185 x 35 mm
Keyboard weightDiffers	460 g	1.06 kg
Other features1 differ
Compatible operating systemsDiffers	Windows XP, Vista, 7	Windows XP, Vista
Internal	No	No
CompatibilityKnown for one	Unknown — not stated by the source	ISO 7816-1, 2, 3, 4

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.