NEC AD-5170 Beige vs NEC AD-7173 Black

Comparison of AD-5170 Beige, AD-7173 Black

35 specifications	A NEC AD-5170 BeigeView product	B NEC AD-7173 BlackView product
Design1 differ
Internal	Yes	Yes
Product colourDiffers	Beige	Black
Disc loading type	Tray	Tray
Mounting	Vertical/Horizontal	Vertical/Horizontal
Performance1 differ
Optical drive type	DVD-RW	DVD-RW
InterfaceDiffers	EIDE/ATA	Serial ATA
Drive device, buffer size	2 MB	2 MB
Burst transfer rateKnown for one	—Unknown — not stated by the source	150 MB/s
Writing speedidentical
CD write speed	48x	48x
CD rewrite speed	32x	32x
CD-R write speed	48x	48x
CD-RW write speed	32x	32x
DVD+R write speed	18x	18x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speed	8x	8x
DVD-R write speed	18x	18x
DVD-RAM write speedKnown for one	—Unknown — not stated by the source	12x
DVD-RW write speed	6x	6x
Reading speedidentical
CD read speed	48x	48x
CD-ROM read speedKnown for one	—Unknown — not stated by the source	48x
DVD-ROM read speedKnown for one	—Unknown — not stated by the source	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)	Yes	Yes
Fixed packet	Yes	Yes
Multi session	Yes	Yes
Session-at-once (SAO)	Yes	Yes
Track-at-once (TAO)	Yes	Yes
Variable packet	Yes	Yes
Weight & dimensionsidentical
HeightKnown for one	—Unknown — not stated by the source	42 mm
Weight	705 g	705 g
Other featuresidentical
Dimensions (WxDxH)	148 x 175 x 42 mm	148 x 175 x 42 mm
Number of optical discs	1 discs	1 discs
Media types supportedKnown for one	DVD-ROM, DVD-R (DL ), DVD-RW, DVD+R, DVD+RW,DVD+R9,CD-ROM, CD-R, CD-RW 80mm/120mm	—Unknown — not stated by the source
Write methodsKnown for one	DAO, SAO, TAO zero gap, variable / fixed packet, multisession	—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.