Lenovo 31P9509 keyboard USB Black vs Lenovo Keyboard Preferred Pro USB

Comparison of 31P9509, Keyboard Preferred Pro USB

11 specifications	A Lenovo 31P9509 keyboard USB Black Model 31P9509 View product	B Lenovo Keyboard Preferred Pro USBView product
Keyboardidentical
Connectivity technology	Wired	Wired
Device interface	USB	USB
Pointing deviceKnown for one	TrackPoint & UltraNav	—Unknown — not stated by the source
Designidentical
Product colour	Black	Black
Featuresidentical
Cable lengthKnown for one	—Unknown — not stated by the source	2 m
Mouseidentical
Mouse included	No	No
Other featuresidentical
DepthKnown for one	—Unknown — not stated by the source	7.3 in
HeightKnown for one	—Unknown — not stated by the source	1.3 in
WidthKnown for one	—Unknown — not stated by the source	17.8 in
Weight & dimensionsidentical
Keyboard dimensions (WxDxH)Known for one	315 x 220 x 22 mm	—Unknown — not stated by the source
Keyboard weightKnown for one	530 g	—Unknown — not stated by the source

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.