Product comparison · 2 optical disc drives

NEC DVD RW drive AD-7241S vs NEC ND-4571 optical disc drive Internal Black

18specifications compared
10differ
8identical
22known for one product only

Key differences

Interface
- DVD RW drive AD-7241S:Serial ATA
- ND-4571 optical disc drive Internal Black:IDE/ATA
DVD+R write speed
- DVD RW drive AD-7241S:24x
- ND-4571 optical disc drive Internal Black:16x
DVD-R write speed
- DVD RW drive AD-7241S:24x
- ND-4571 optical disc drive Internal Black:16x
DVD-RAM write speed
- DVD RW drive AD-7241S:12x
- ND-4571 optical disc drive Internal Black:5x
DVD-RW write speed
- DVD RW drive AD-7241S:6x
- ND-4571 optical disc drive Internal Black:8x
DVD drive average random access time
- DVD RW drive AD-7241S:140 ms
- ND-4571 optical disc drive Internal Black:160 ms
CD-ROM drive average random access time
- DVD RW drive AD-7241S:160 ms
- ND-4571 optical disc drive Internal Black:140 ms
Weight
- DVD RW drive AD-7241S:640 g
- ND-4571 optical disc drive Internal Black:900 g

Side by side

Differences highlightedShow differences only

Comparison of DVD RW drive AD-7241S, ND-4571
40 specifications	A NEC DVD RW drive AD-7241S View product	B NEC ND-4571 optical disc drive Internal Black Model ND-4571 View product
Designidentical
Internal	Yes	Yes
Product colour	Black	Black
Disc loading type	Tray	Tray
MountingKnown for one	Horizontal	Unknown — not stated by the source
Performance1 differ
InterfaceDiffers	Serial ATA	IDE/ATA
LightScribeKnown for one	Yes	Unknown — not stated by the source
Drive device, buffer size	2 MB	2 MB
Optical disc diameterKnown for one	120 mm	Unknown — not stated by the source
Writing speed4 differ
CD write speed	48x	48x
CD rewrite speed	32x	32x
CD-R write speedKnown for one	48x	Unknown — not stated by the source
CD-RW write speedKnown for one	32x	Unknown — not stated by the source
DVD+R Double Layer write speedKnown for one	12x	Unknown — not stated by the source
DVD+R write speedDiffers	24x	16x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speedKnown for one	12x	Unknown — not stated by the source
DVD-R write speedDiffers	24x	16x
DVD-R9 write speedKnown for one	12x	Unknown — not stated by the source
DVD-RAM write speedDiffers	12x	5x
DVD-RW write speedDiffers	6x	8x
Reading speedidentical
CD read speed	48x	48x
DVD+R read speedKnown for one	16x	Unknown — not stated by the source
DVD-R read speedKnown for one	16x	Unknown — not stated by the source
DVD read speedKnown for one	Unknown — not stated by the source	16x
Access time2 differ
DVD drive average random access timeDiffers	140 ms	160 ms
CD-ROM drive average random access timeDiffers	160 ms	140 ms
Record modesidentical
Disc-at-once (DAO)Known for one	Yes	Unknown — not stated by the source
Multi sessionKnown for one	Yes	Unknown — not stated by the source
Session-at-once (SAO)Known for one	Yes	Unknown — not stated by the source
Track-at-once (TAO)Known for one	Yes	Unknown — not stated by the source
Weight & dimensions1 differ
WeightDiffers	640 g	900 g
Packaging contentidentical
Warranty cardKnown for one	Yes	Unknown — not stated by the source
Other features2 differ
Media types supportedDiffers	DVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD+R9, DVD+RW, CD-ROM, CD-R, CD-RW	DVD-ROM,DVD-R,DVD+R, DVD+RW,CD-ROM, CD-R, CD-RW
Dimensions (WxDxH)Differs	142 x 42 x 170 mm	148 x 42 x 190 mm
Minimum RAMKnown for one	256 MB	Unknown — not stated by the source
Minimum processorKnown for one	Pentium III 1.0GHz	Unknown — not stated by the source
Minimum storage drive spaceKnown for one	1 GB	Unknown — not stated by the source
Compatible operating systemsKnown for one	Windows Vista Home Basic, Home Premium, Ultimate, Business Windows XP Home/Professional MultiRead, PC2001	Unknown — not stated by the source
Language versionKnown for one	Multilingual	Unknown — not stated by the source
Maximum data transfer rateKnown for one	150 Mbit/s	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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