Product comparison · 2 keyboards

HP 511571-ZH1 keyboard Mouse included RF Wireless QWERTY English Black vs HP 640985-031 keyboard Mouse included RF Wireless QWERTY English Black

Key differences

Purpose
- 511571-ZH1 keyboard Mouse included RF Wireless QWERTY English Black:Universal
- 640985-031 keyboard Mouse included RF Wireless QWERTY English Black:PC/Server

Differences highlightedShow differences only

Comparison of 511571-ZH1, 640985-031
19 specifications	A HP 511571-ZH1 keyboard Mouse included RF Wireless QWERTY English Black Model 511571-ZH1 View product	B HP 640985-031 keyboard Mouse included RF Wireless QWERTY English Black Model 640985-031 View product
Keyboard1 differ
Connectivity technology	Wireless	Wireless
Device interface	RF Wireless	RF Wireless
Keyboard layout	QWERTY	QWERTY
Keyboard language	English	English
Keyboard form factor	Full-size (100%)	Full-size (100%)
Numeric keypad	Yes	Yes
PurposeDiffers	Universal	PC/Server
Frequency band	2.4 GHz	2.4 GHz
Country of origin	China	China
Designidentical
Keyboard style	Straight	Straight
Wrist rest	No	No
Product colour	Black	Black
Poweridentical
Power source type	Battery	Battery
Mouseidentical
Mouse included	Yes	Yes
Scroll	Yes	Yes
Scroll type	Wheel	Wheel
Number of scroll wheelsKnown for one	Unknown — not stated by the source	1
Packaging contentidentical
Wireless receiver interfaceKnown for one	USB Type-A	Unknown — not stated by the source
Other featuresidentical
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.