Product comparison · 2 keyboards

Lenovo 51J0179 keyboard USB Black vs Lenovo 57Y4724 keyboard Mouse included RF Wireless Black

Key differences

Connectivity technology
- 51J0179 keyboard USB Black:Wired
- 57Y4724 keyboard Mouse included RF Wireless Black:Wireless
Device interface
- 51J0179 keyboard USB Black:USB
- 57Y4724 keyboard Mouse included RF Wireless Black:RF Wireless
Mouse included
- 51J0179 keyboard USB Black:No
- 57Y4724 keyboard Mouse included RF Wireless Black:Yes
Keyboard dimensions (WxDxH)
- 51J0179 keyboard USB Black:457 x 185 x 35 mm
- 57Y4724 keyboard Mouse included RF Wireless Black:459 x 185 x 31 mm
Keyboard weight
- 51J0179 keyboard USB Black:1.06 kg
- 57Y4724 keyboard Mouse included RF Wireless Black:694 g

Differences highlightedShow differences only

Comparison of 51J0179, 57Y4724
12 specifications	A Lenovo 51J0179 keyboard USB Black Model 51J0179 View product	B Lenovo 57Y4724 keyboard Mouse included RF Wireless Black Model 57Y4724 View product
Keyboard2 differ
Connectivity technologyDiffers	Wired	Wireless
Device interfaceDiffers	USB	RF Wireless
Frequency bandKnown for one	Unknown — not stated by the source	2.4 GHz
Mouse1 differ
Mouse includedDiffers	No	Yes
Weight & dimensions2 differ
Keyboard dimensions (WxDxH)Differs	457 x 185 x 35 mm	459 x 185 x 31 mm
Keyboard weightDiffers	1.06 kg	694 g
Mouse dimensions (WxDxH)Known for one	Unknown — not stated by the source	53 x 97 x 35 mm
Mouse weightKnown for one	Unknown — not stated by the source	80 g
Other features1 differ
Compatible operating systemsDiffers	Windows XP, Windows Vista, Windows 7	Windows 7, Windows Vista, Windows XP (32-bit)
Featuresidentical
Cable lengthKnown for one	2.3 m	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.