Product comparison · 2 optical disc drives

NEC AD-7173 optical disc drive Internal Beige vs NEC ND-4571 optical disc drive Internal Black

Key differences

Product colour
- AD-7173 optical disc drive Internal Beige:Beige
- ND-4571 optical disc drive Internal Black:Black
Interface
- AD-7173 optical disc drive Internal Beige:Serial ATA
- ND-4571 optical disc drive Internal Black:IDE/ATA
DVD+R write speed
- AD-7173 optical disc drive Internal Beige:18x
- ND-4571 optical disc drive Internal Black:16x
DVD-R write speed
- AD-7173 optical disc drive Internal Beige:18x
- ND-4571 optical disc drive Internal Black:16x
DVD-RAM write speed
- AD-7173 optical disc drive Internal Beige:12x
- ND-4571 optical disc drive Internal Black:5x
DVD-RW write speed
- AD-7173 optical disc drive Internal Beige:6x
- ND-4571 optical disc drive Internal Black:8x
Weight
- AD-7173 optical disc drive Internal Beige:705 g
- ND-4571 optical disc drive Internal Black:900 g
Dimensions (WxDxH)
- AD-7173 optical disc drive Internal Beige:148 x 175 x 42 mm
- ND-4571 optical disc drive Internal Black:148 x 42 x 190 mm

Differences highlightedShow differences only

Comparison of AD-7173, ND-4571
25 specifications	A NEC AD-7173 optical disc drive Internal Beige Model AD-7173 View product	B NEC ND-4571 optical disc drive Internal Black Model ND-4571 View product
Design1 differ
Internal	Yes	Yes
Product colourDiffers	Beige	Black
Disc loading type	Tray	Tray
Performance1 differ
InterfaceDiffers	Serial ATA	IDE/ATA
Drive device, buffer size	2 MB	2 MB
Burst transfer rateKnown for one	150 MB/s	Unknown — not stated by the source
Writing speed4 differ
CD write speed	48x	48x
CD rewrite speed	32x	32x
DVD+R write speedDiffers	18x	16x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speedKnown for one	8x	Unknown — not stated by the source
DVD-R write speedDiffers	18x	16x
DVD-RAM write speedDiffers	12x	5x
DVD-RW write speedDiffers	6x	8x
Reading speedidentical
CD read speed	48x	48x
DVD read speed	16x	16x
Access timeidentical
DVD drive average random access time	160 ms	160 ms
CD-ROM drive average random access time	140 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	705 g	900 g
Other features1 differ
Dimensions (WxDxH)Differs	148 x 175 x 42 mm	148 x 42 x 190 mm
Media types supportedKnown for one	Unknown — not stated by the source	DVD-ROM,DVD-R,DVD+R, DVD+RW,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.