Product comparison · 2 optical disc drives

NEC AD-7170S optical disc drive Internal vs NEC NR-9500B Beige

12specifications compared
6differ
6identical
16known for one product only

Key differences

Interface
- AD-7170S optical disc drive Internal:Serial ATA
- NR-9500B Beige:EIDE/ATA
CD write speed
- AD-7170S optical disc drive Internal:48x
- NR-9500B Beige:52x
CD read speed
- AD-7170S optical disc drive Internal:48x
- NR-9500B Beige:52x
CD-ROM drive average random access time
- AD-7170S optical disc drive Internal:140 ms
- NR-9500B Beige:110 ms
Weight
- AD-7170S optical disc drive Internal:705 g
- NR-9500B Beige:750 g
Dimensions (WxDxH)
- AD-7170S optical disc drive Internal:148 x 42 x 175 mm
- NR-9500B Beige:148.2 x 184 x 42 mm

Side by side

Differences highlightedShow differences only

Comparison of AD-7170S, NR-9500B Beige
28 specifications	A NEC AD-7170S optical disc drive Internal Model AD-7170S View product	B NEC NR-9500B Beige View product
Designidentical
Product colourKnown for one	Unknown — not stated by the source	Beige
Disc loading typeKnown for one	Unknown — not stated by the source	Tray
Performance1 differ
InterfaceDiffers	Serial ATA	EIDE/ATA
Drive device, buffer sizeKnown for one	Unknown — not stated by the source	2 MB
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Writing speed1 differ
CD write speedDiffers	48x	52x
DVD+R write speedKnown for one	18x	Unknown — not stated by the source
DVD+RW write speedKnown for one	8x	Unknown — not stated by the source
DVD-R Double Layer write speedKnown for one	8x	Unknown — not stated by the source
DVD-R write speedKnown for one	18x	Unknown — not stated by the source
DVD-RAM write speedKnown for one	12x	Unknown — not stated by the source
DVD-RW write speedKnown for one	6x	Unknown — not stated by the source
Reading speed1 differ
CD read speedDiffers	48x	52x
DVD read speedKnown for one	16x	Unknown — not stated by the source
Access time1 differ
DVD drive average random access timeKnown for one	160 ms	Unknown — not stated by the source
CD-ROM drive average random access timeDiffers	140 ms	110 ms
Record modesidentical
Fixed packetKnown for one	Unknown — not stated by the source	Yes
Packet writingKnown for one	Unknown — not stated by the source	Yes
Variable packetKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions1 differ
WeightDiffers	705 g	750 g
Other features1 differ
Dimensions (WxDxH)Differs	148 x 42 x 175 mm	148.2 x 184 x 42 mm
Media types supportedKnown for one	Unknown — not stated by the source	CD-ROM, CD-R, CD-RW

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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