Product comparison · 2 optical disc drives

NEC AD-7170S DVD-RW 18x SATA vs NEC AD-7173A DVD-RW 18x black

Key differences

Product colour
- AD-7170S DVD-RW 18x SATA:Beige
- AD-7173A DVD-RW 18x black:Black
Interface
- AD-7170S DVD-RW 18x SATA:Serial ATA
- AD-7173A DVD-RW 18x black:EIDE/ATA

Differences highlightedShow differences only

Comparison of AD-7170S DVD-RW 18x SATA, AD-7173A DVD-RW 18x black
27 specifications	A NEC AD-7170S DVD-RW 18x SATA View product	B NEC AD-7173A DVD-RW 18x black View product
Design1 differ
Internal	Yes	Yes
Product colourDiffers	Beige	Black
Disc loading type	Tray	Tray
Performance1 differ
InterfaceDiffers	Serial ATA	EIDE/ATA
Writing speedidentical
CD write speed	48x	48x
CD rewrite 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 speed	12x	12x
DVD-RW write speed	6x	6x
Reading speedidentical
CD read speed	48x	48x
DVD read speed	16x	16x
Access timeidentical
DVD drive average random access time	160 ms	160 ms
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
Weight	705 g	705 g
Other featuresidentical
Media types supported	DVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD +R, DVD +RW, DVD +R9, CD-ROM, CD-R and CD-RW with 80mm and 120mm diameter	DVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD +R, DVD +RW, DVD +R9, CD-ROM, CD-R and CD-RW with 80mm and 120mm diameter
Dimensions (WxDxH)	148 x 175 x 42 mm	148 x 175 x 42 mm
Drive devices burst data transfer rate (PIO)Known for one	Unknown — not stated by the source	PIO mode 4
Drive devices burst data transfer rate (Ultra DMA)Known for one	Unknown — not stated by the source	Ultra DMA 66

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.