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Product comparison · 2 optical disc drives

Lenovo ThinkPlus USB 2.0 CD-RW/DVD-ROM Combo II Drive vs NEC ND-7550 DVD-RW Black Slim

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  • 8specifications compared
  • 5differ
  • 3identical
  • 39known for one product only

Key differences

  • Internal
    • No
    • Yes
  • CD rewrite speed
    • 24x
    • 20x
  • Weight
    • 320 g
    • 190 g
  • Dimensions (WxDxH)
    • 144 x 145 x 20 mm
    • 128 x 12.7 x 129 mm

Side by side

Differences highlightedShow differences only
47 specifications
A

Lenovo

ThinkPlus USB 2.0 CD-RW/DVD-ROM Combo II DriveView product
B

NEC

ND-7550 DVD-RW Black SlimView product
Design1 differ
InternalDiffersNoYes
Product colourKnown for oneBlack
Disc loading typeKnown for oneTray
Performanceidentical
Optical drive typeKnown for oneDVD-RW
InterfaceKnown for oneUSB 2.0
Drive device, buffer sizeKnown for one2 MB
Writing speed1 differ
CD write speed24x24x
CD rewrite speedDiffers24x20x
CD-R write speedKnown for one24x
CD-RW write speedKnown for one20x
DVD+R write speedKnown for one8x
DVD+RW write speedKnown for one8x
DVD-R Double Layer write speedKnown for one4x
DVD-R write speedKnown for one8x
DVD-RAM write speedKnown for one5x
DVD-RW write speedKnown for one6x
DVD write speedKnown for one8x
DVD rewrite speedKnown for one8x
Reading speedidentical
CD read speed24x24x
CD-R read speedKnown for one24x
CD-RW read speedKnown for one20x
DVD+R read speedKnown for one8x
DVD-R Double Layer read speedKnown for one4x
DVD-R read speedKnown for one8x
DVD-RAM read speedKnown for one5x
DVD-RW read speedKnown for one6x
DVD+RW read speedKnown for one8x
DVD read speed8x8x
Access timeidentical
Access timeKnown for one130 ms
Weight & dimensions1 differ
WeightDiffers320 g190 g
Other features2 differ
Media types supportedDiffersCD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD-RAM, DVD-RW, DVD+RW, DVD+R, DVD+R DLDVD-ROM,DVD-R,DVD+R, DVD+RW,CD-ROM, CD-R, CD-RW
Minimum system requirementsKnown for one-MPC Level 3 -MultiRead -PC2001
Write methodsKnown for oneDAO, SAO,TAO + zero gap, variable / fixed packet, multisession
Dimensions (WxDxH)Differs144 x 145 x 20 mm128 x 12.7 x 129 mm
Number of optical discsKnown for one1 discs
DVD+R speedKnown for one8x
DVD+RW speedKnown for one8x
DVD-R speedKnown for one8x
DVD-RW speedKnown for one6x
Double Layer DVD write speedKnown for one4x
Drive devices burst data transfer rate (PIO)Known for oneMode 4
Drive devices burst data transfer rate (Ultra DMA)Known for one33
Technical featuresKnown for one-12 cm / 8 cm CD & DVD -buffer underrun prevention
Compatible operating systemsKnown for oneMicrosoft Windows XP, Microsoft Windows 2000
Operational conditionsidentical
Operating relative humidity (H-H)Known for one8 - 80%
Operating temperature (T-T)Known for one5 - 45 °C
Packaging contentidentical
Bundled softwareKnown for oneWinDVD, IBM RecordNow, IBM Drive Letter Access

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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