Lenovo IBM PREFERRED PRO FULLSIZE KEYBOARD PS/2 NOORS ZWART vs Lenovo STEALTH BLACK PREFERRED PRO

Comparison of IBM PREFERRED PRO FULLSIZE KEYBOARD PS/2 NOORS ZWART, STEALTH BLACK PREFERRED PRO

11 specifications	A Lenovo IBM PREFERRED PRO FULLSIZE KEYBOARD PS/2 NOORS ZWARTView product	B Lenovo STEALTH BLACK PREFERRED PROView product
Keyboardidentical
Connectivity technologyKnown for one	Wired	—Unknown — not stated by the source
Device interfaceKnown for one	PS/2	—Unknown — not stated by the source
Keyboard number of keys	104	104
Featuresidentical
Cable length	2 m	2 m
System requirementsidentical
Mac operating systems supported	No	No
Minimum system requirements	The IBM Preferred Pro Full-size Keyboard is supported on IBM or IBM compatible PCs with a PS/2 style mouse or PC-AT keyboard ports.	The IBM Preferred Pro Full-size Keyboard is supported on IBM or IBM compatible PCs with a PS/2 style mouse or PC-AT keyboard ports.
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)	185 x 453 x 34 mm	185 x 453 x 34 mm
Other featuresidentical
Compatibility	PC	PC
I/O ports	PS/2	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.