Product comparison · 2 keyboards

Lenovo 4X30E51020 keyboard USB QWERTY Italian Black vs Lindy 21840 keyboard Mouse included RF Wireless QWERTY English Black

12specifications compared
7differ
5identical
29known for one product only

Key differences

Connectivity technology
- 4X30E51020 keyboard USB QWERTY Italian Black:Wired
- 21840 keyboard Mouse included RF Wireless QWERTY English Black:Wireless
Device interface
- 4X30E51020 keyboard USB QWERTY Italian Black:USB
- 21840 keyboard Mouse included RF Wireless QWERTY English Black:RF Wireless
Keyboard language
- 4X30E51020 keyboard USB QWERTY Italian Black:Italian
- 21840 keyboard Mouse included RF Wireless QWERTY English Black:English
Keyboard form factor
- 4X30E51020 keyboard USB QWERTY Italian Black:Full-size (100%)
- 21840 keyboard Mouse included RF Wireless QWERTY English Black:Mini
Keyboard number of keys
- 4X30E51020 keyboard USB QWERTY Italian Black:104
- 21840 keyboard Mouse included RF Wireless QWERTY English Black:56
Mouse included
- 4X30E51020 keyboard USB QWERTY Italian Black:No
- 21840 keyboard Mouse included RF Wireless QWERTY English Black:Yes
Keyboard dimensions (WxDxH)
- 4X30E51020 keyboard USB QWERTY Italian Black:457 x 185 x 35 mm
- 21840 keyboard Mouse included RF Wireless QWERTY English Black:110 x 60 x 18 mm

Side by side

Differences highlightedShow differences only

Comparison of 4X30E51020, 21840
41 specifications	A Lenovo 4X30E51020 keyboard USB QWERTY Italian Black Model 4X30E51020 View product	B Lindy 21840 keyboard Mouse included RF Wireless QWERTY English Black Model 21840 View product
Keyboard5 differ
Connectivity technologyDiffers	Wired	Wireless
Device interfaceDiffers	USB	RF Wireless
Keyboard languageDiffers	Italian	English
Keyboard form factorDiffers	Full-size (100%)	Mini
Numeric keypadKnown for one	Yes	Unknown — not stated by the source
Keyboard number of keysDiffers	104	56
Windows keysKnown for one	Yes	Unknown — not stated by the source
Smart card readerKnown for one	Yes	Unknown — not stated by the source
CertificationKnown for one	FCC, UL, CB, ICES, CE, TUV GS, VCCI, C-Tick, BSMI, UK CoC, KCC, EMV, HBCI, FIPS 201	Unknown — not stated by the source
Pointing deviceKnown for one	Unknown — not stated by the source	Mouse buttons
PurposeKnown for one	Unknown — not stated by the source	Universal
Frequency bandKnown for one	Unknown — not stated by the source	2.4 GHz
Designidentical
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Adjustable keyboard heightKnown for one	Yes	Unknown — not stated by the source
Surface colorationKnown for one	Monochromatic	Unknown — not stated by the source
Featuresidentical
Cable lengthKnown for one	2.3 m	Unknown — not stated by the source
Wireless rangeKnown for one	Unknown — not stated by the source	10 m
Poweridentical
Power consumptionKnown for one	250 mA	Unknown — not stated by the source
Power source typeKnown for one	Unknown — not stated by the source	Battery
Battery typeKnown for one	Unknown — not stated by the source	AAA
Number of batteries supportedKnown for one	Unknown — not stated by the source	2
Mouse1 differ
Mouse includedDiffers	No	Yes
Movement detection technologyKnown for one	Unknown — not stated by the source	Optical
Movement resolutionKnown for one	Unknown — not stated by the source	400 DPI
System requirementsidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 40 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	8 - 80%	Unknown — not stated by the source
Weight & dimensions1 differ
Keyboard dimensions (WxDxH)Differs	457 x 185 x 35 mm	110 x 60 x 18 mm
Keyboard weightKnown for one	1.06 kg	Unknown — not stated by the source
Packaging contentidentical
Number of products includedKnown for one	1 pc(s)	Unknown — not stated by the source
Receiver typeKnown for one	Unknown — not stated by the source	Nano receiver
Batteries includedKnown for one	Unknown — not stated by the source	Yes
Packaging dataidentical
Package widthKnown for one	480 mm	Unknown — not stated by the source
Package depthKnown for one	220 mm	Unknown — not stated by the source
Package heightKnown for one	45 mm	Unknown — not stated by the source
Package weightKnown for one	1.41 kg	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.

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