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Product comparison · 2 keyboards

Dell KM520 keyboard Mouse included RF Wireless US English Black vs Lenovo 4X31R64428 keyboard Mouse included Home/Office USB Romanian Black

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  • 13specifications compared
  • 7differ
  • 6identical
  • 37known for one product only

Key differences

The Lenovo 4X31R64428 keyboard Mouse included Home/Office USB Romanian Black has 170 g more keyboard weight than the Dell KM520 keyboard Mouse included RF Wireless US English Black (570 g vs 400 g). Connectivity technology: Wireless on the Dell KM520 keyboard Mouse included RF Wireless US English Black, Wired on the Lenovo 4X31R64428 keyboard Mouse included Home/Office USB Romanian Black. Device interface: RF Wireless on the Dell KM520 keyboard Mouse included RF Wireless US English Black, USB on the Lenovo 4X31R64428 keyboard Mouse included Home/Office USB Romanian Black. Keyboard language: US English on the Dell KM520 keyboard Mouse included RF Wireless US English Black, Romanian on the Lenovo 4X31R64428 keyboard Mouse included Home/Office USB Romanian Black. Keyboard form factor: 110% on the Dell KM520 keyboard Mouse included RF Wireless US English Black, Full-size (100%) on the Lenovo 4X31R64428 keyboard Mouse included Home/Office USB Romanian Black.

  • Connectivity technology
    • Wireless
    • Wired
  • Device interface
    • RF Wireless
    • USB
  • Keyboard language
    • US English
    • Romanian
  • Keyboard form factor
    • 110%
    • Full-size (100%)
  • Power source type
    • Battery
    • USB
  • Keyboard dimensions (WxDxH)
    • 432.71 x 122.11 x 26.11 mm
    • 424 x 146 x 20 mm
  • Keyboard weight
    • 400 g
    • 570 g

Side by side

Differences highlightedShow differences only
50 specifications
A

Dell

KM520 keyboard Mouse included RF Wireless US English Black

Model KM520

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B

Lenovo

4X31R64428 keyboard Mouse included Home/Office USB Romanian Black

Model 4X31R64428

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Keyboard4 differ
Recommended usageKnown for oneHome/Office
Connectivity technologyDiffersWirelessWired
Device interfaceDiffersRF WirelessUSB
Keyboard languageDiffersUS EnglishRomanian
Keyboard form factorDiffers110%Full-size (100%)
Keyboard keys operating lifeKnown for one10 million characters
Windows keysKnown for oneYes
Copilot keyKnown for oneYes
Key pitchKnown for one1.95 cm
CertificationKnown for oneAAA, BSMI, CB, CE, C-tick, EAC, FCC, IC, KCC, TUV, UL, VCCI
Frequency bandKnown for one2.4 GHz
Designidentical
BacklightKnown for oneNo
Adjustable keyboard heightKnown for oneYes
Protection featuresKnown for oneSpill resistant
Surface colorationKnown for oneMonochromatic
Featuresidentical
Cable lengthKnown for one1.8 m
Power1 differ
Power source typeDiffersBatteryUSB
Keyboard battery typeKnown for oneAAA
Number of batteries (keyboard)Known for one2
Mouseidentical
Form factorKnown for oneAmbidextrous
Movement detection technologyKnown for oneOptical
Movement resolutionKnown for one1600 DPI
Buttons quantityKnown for one3
Buttons typeKnown for onePressed buttons
ScrollKnown for oneYes
Scroll typeKnown for oneWheel
Mouse cable lengthKnown for one1.8 m
Buttons durability (million clicks)Known for one1
Mouse battery typeKnown for oneAA
System requirementsidentical
Mac operating systems supportedKnown for oneMacOS
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 40 °C
Operating relative humidity (H-H)Known for one15 - 60%
Weight & dimensions2 differ
Keyboard dimensions (WxDxH)Differs432.71 x 122.11 x 26.11 mm424 x 146 x 20 mm
Keyboard weightDiffers400 g570 g
Mouse dimensions (WxDxH)Known for one111 x 62 x 34 mm
Mouse weightKnown for one69 g
Packaging contentidentical
Number of products includedKnown for one2 pc(s)
AC adapter includedKnown for oneNo
Receiver includedKnown for oneYes
Packaging dataidentical
Package widthKnown for one508 mm
Package depthKnown for one179 mm
Package heightKnown for one45 mm
Package weightKnown for one910 g
Package typeKnown for oneBox

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