Product comparison · 2 optical disc drives

NEC AD-7170 optical disc drive Internal DVD-RW vs NEC AD-7543A optical disc drive Internal Black

17specifications compared
13differ
4identical
15known for one product only

Key differences

Interface
- AD-7170 optical disc drive Internal DVD-RW:EIDE/ATA
- AD-7543A optical disc drive Internal Black:IDE/ATA
CD write speed
- AD-7170 optical disc drive Internal DVD-RW:48x
- AD-7543A optical disc drive Internal Black:24x
CD rewrite speed
- AD-7170 optical disc drive Internal DVD-RW:32x
- AD-7543A optical disc drive Internal Black:24x
DVD+R write speed
- AD-7170 optical disc drive Internal DVD-RW:18x
- AD-7543A optical disc drive Internal Black:8x
DVD-R Double Layer write speed
- AD-7170 optical disc drive Internal DVD-RW:8x
- AD-7543A optical disc drive Internal Black:4x
DVD-R write speed
- AD-7170 optical disc drive Internal DVD-RW:18x
- AD-7543A optical disc drive Internal Black:8x
DVD-RAM write speed
- AD-7170 optical disc drive Internal DVD-RW:12x
- AD-7543A optical disc drive Internal Black:5x
CD read speed
- AD-7170 optical disc drive Internal DVD-RW:48x
- AD-7543A optical disc drive Internal Black:24x

Side by side

Differences highlightedShow differences only

Comparison of AD-7170, AD-7543A
32 specifications	A NEC AD-7170 optical disc drive Internal DVD-RW Model AD-7170 View product	B NEC AD-7543A optical disc drive Internal Black Model AD-7543A View product
Designidentical
Internal	Yes	Yes
Product colourKnown for one	Unknown — not stated by the source	Black
Disc loading type	Tray	Tray
MountingKnown for one	Vertical/Horizontal	Unknown — not stated by the source
Performance1 differ
InterfaceDiffers	EIDE/ATA	IDE/ATA
Optical drive typeKnown for one	DVD-RW	Unknown — not stated by the source
Drive device, buffer sizeKnown for one	2 MB	Unknown — not stated by the source
Writing speed6 differ
CD write speedDiffers	48x	24x
CD rewrite speedDiffers	32x	24x
DVD+R write speedDiffers	18x	8x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speedDiffers	8x	4x
DVD-R write speedDiffers	18x	8x
DVD-RAM write speedDiffers	12x	5x
DVD-RW write speed	6x	6x
DVD+R Double Layer write speedKnown for one	8x	Unknown — not stated by the source
Reading speed1 differ
CD read speedDiffers	48x	24x
DVD+R read speedKnown for one	Unknown — not stated by the source	8x
DVD-R read speedKnown for one	Unknown — not stated by the source	8x
CD-ROM read speedKnown for one	48x	Unknown — not stated by the source
BD-ROM read speedKnown for one	16x	Unknown — not stated by the source
Access time2 differ
DVD drive average random access timeDiffers	160 ms	180 ms
CD-ROM drive average random access timeDiffers	140 ms	150 ms
Record modesidentical
Disc-at-once (DAO)Known for one	Unknown — not stated by the source	Yes
Multi sessionKnown for one	Unknown — not stated by the source	Yes
Packet writingKnown for one	Unknown — not stated by the source	Yes
Session-at-once (SAO)Known for one	Unknown — not stated by the source	Yes
Track-at-once (TAO)Known for one	Unknown — not stated by the source	Yes
Weight & dimensions1 differ
WeightDiffers	700 g	180 g
Other features2 differ
Media types supportedDiffers	DVD-ROM/DVD-Video/CD-ROM(mode1,mode2)/CD-ROM XA/CD-I/CD-DA(Audio CD)/CD Extra/CD-TEXT/PhotoCD/Video CD	DVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD +R, DVD +R9, DVD +RW, CD-ROM, CD-R, CD-RW
Dimensions (WxDxH)Differs	148 x 175 x 42 mm	128 x 129 x 12.7 mm
Power requirementsKnown for one	DC 12V, DC 5V	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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