Product comparison · 2 keyboards

Lenovo 55Y9044 keyboard USB Black vs Lenovo 57Y4717 keyboard Mouse included RF Wireless Black

Key differences

Connectivity technology
- 55Y9044 keyboard USB Black:Wired
- 57Y4717 keyboard Mouse included RF Wireless Black:Wireless
Device interface
- 55Y9044 keyboard USB Black:USB
- 57Y4717 keyboard Mouse included RF Wireless Black:RF Wireless
Mouse included
- 55Y9044 keyboard USB Black:No
- 57Y4717 keyboard Mouse included RF Wireless Black:Yes
Keyboard dimensions (WxDxH)
- 55Y9044 keyboard USB Black:313 x 220 x 19 mm
- 57Y4717 keyboard Mouse included RF Wireless Black:459 x 185 x 31 mm
Keyboard weight
- 55Y9044 keyboard USB Black:460 g
- 57Y4717 keyboard Mouse included RF Wireless Black:694 g

Differences highlightedShow differences only

Comparison of 55Y9044, 57Y4717
16 specifications	A Lenovo 55Y9044 keyboard USB Black Model 55Y9044 View product	B Lenovo 57Y4717 keyboard Mouse included RF Wireless Black Model 57Y4717 View product
Keyboard2 differ
Connectivity technologyDiffers	Wired	Wireless
Device interfaceDiffers	USB	RF Wireless
Keyboard form factorKnown for one	Full-size (100%)	Unknown — not stated by the source
PurposeKnown for one	PC/Server	Unknown — not stated by the source
Frequency bandKnown for one	Unknown — not stated by the source	2.4 GHz
Designidentical
BacklightKnown for one	No	Unknown — not stated by the source
Keyboard styleKnown for one	Straight	Unknown — not stated by the source
Product colour	Black	Black
Featuresidentical
Cable lengthKnown for one	1.2 m	Unknown — not stated by the source
Mouse1 differ
Mouse includedDiffers	No	Yes
System requirementsidentical
Mac operating systems supported	No	No
Weight & dimensions2 differ
Keyboard dimensions (WxDxH)Differs	313 x 220 x 19 mm	459 x 185 x 31 mm
Keyboard weightDiffers	460 g	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 featuresidentical
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 7, Windows Vista, Windows XP (32-bit)

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.