NEC AD-7170A optical disc drive Internal DVD-RW vs NEC AD-7173A optical disc drive Internal DVD-RW

Comparison of AD-7170A, AD-7173A

21 specifications	A NEC AD-7170A optical disc drive Internal DVD-RW Model AD-7170A View product	B NEC AD-7173A optical disc drive Internal DVD-RW Model AD-7173A View product
Designidentical
Internal	Yes	Yes
Mounting	Vertical/Horizontal	Vertical/Horizontal
Performanceidentical
Optical drive type	DVD-RW	DVD-RW
Interface	EIDE/ATA	EIDE/ATA
Drive device, buffer size	2 MB	2 MB
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-RW write speed	6x	6x
Reading speedidentical
CD read speed	48x	48x
DVD-RAM read speed	12x	12x
Access timeidentical
DVD drive average random access time	160 ms	160 ms
Access time	140 ms	140 ms
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, CD-RW 80mm & 120mm di	DVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD +R, DVD +RW, DVD +R9, CD-ROM, CD-R, CD-RW 80mm & 120mm di
Write methods	DAO, SAO, TAO zero gap, variable / fixed packet, multisession	DAO, SAO, TAO zero gap, variable / fixed packet, multisession
Dimensions (WxDxH)	148 x 42 x 175 mm	148 x 42 x 175 mm
Number of optical discs	1 discs	1 discs

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