Product comparison · 2 optical disc drives

NEC ND-3550 DVD-RW Black vs NEC ND-4550 DVDRW 16X silver

16specifications compared
3differ
13identical
18known for one product only

Key differences

Product colour
- ND-3550 DVD-RW Black:Black
- ND-4550 DVDRW 16X silver:Silver
CD rewrite speed
- ND-3550 DVD-RW Black:48x
- ND-4550 DVDRW 16X silver:32x

Side by side

Differences highlightedShow differences only

Comparison of ND-3550 DVD-RW Black, ND-4550 DVDRW 16X silver
34 specifications	A NEC ND-3550 DVD-RW Black View product	B NEC ND-4550 DVDRW 16X silver View product
Design1 differ
Internal	Yes	Yes
Product colourDiffers	Black	Silver
Disc loading typeKnown for one	Tray	Unknown — not stated by the source
Performanceidentical
Optical drive type	DVD-RW	DVD-RW
Drive device, buffer size	2 MB	2 MB
Writing speed1 differ
CD write speed	48x	48x
CD rewrite speedDiffers	48x	32x
CD-R write speedKnown for one	48x	Unknown — not stated by the source
CD-RW write speedKnown for one	32x	Unknown — not stated by the source
DVD+R write speedKnown for one	16x	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	6x	Unknown — not stated by the source
DVD-R write speedKnown for one	16x	Unknown — not stated by the source
DVD-R9 write speedKnown for one	8x	Unknown — not stated by the source
DVD-RW write speedKnown for one	6x	Unknown — not stated by the source
DVD write speedKnown for one	16x	Unknown — not stated by the source
Reading speedidentical
CD read speed	48x	48x
DVD read speed	16x	16x
Access timeidentical
Access time	140 ms	140 ms
DVD drive average random access timeKnown for one	Unknown — not stated by the source	160 ms
Weight & dimensionsidentical
Weight	900 g	900 g
Other features1 differ
Minimum system requirementsKnown for one	-MPC Level 3 -MultiRead -PC2001	Unknown — not stated by the source
Write methodsDiffers	DAO, SAO,TAO + zero gap,variable / fixed packet, multisession	CD: DOA, SAO, TAO, multisession
Dimensions (WxDxH)	148 x 42 x 190 mm	148 x 42 x 190 mm
Number of optical discsKnown for one	1 discs	Unknown — not stated by the source
DVD+R speed	16x	16x
DVD+RW speed	8x	8x
DVD-R speed	16x	16x
DVD-RW speed	6x	6x
Double Layer DVD write speedKnown for one	6x	Unknown — not stated by the source
Drive devices burst data transfer rate (PIO)Known for one	Mode 4	Unknown — not stated by the source
Drive devices burst data transfer rate (Ultra DMA)Known for one	33	Unknown — not stated by the source
Technical featuresKnown for one	-Dust protected enclosure -Emergency eject	Unknown — not stated by the source
I/O portsKnown for one	Unknown — not stated by the source	analog- and digital output

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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