Product comparison · 2 optical disc drives

NEC DVD RW drive AD-7241S vs NEC DVD RW drive AD7240S

Key differences

DVD drive average random access time
- DVD RW drive AD-7241S:140 ms
- DVD RW drive AD7240S:160 ms
CD-ROM drive average random access time
- DVD RW drive AD-7241S:160 ms
- DVD RW drive AD7240S:140 ms
Dimensions (WxDxH)
- DVD RW drive AD-7241S:142 x 42 x 170 mm
- DVD RW drive AD7240S:148 x 42 x 170 mm

Differences highlightedShow differences only

Comparison of DVD RW drive AD-7241S, DVD RW drive AD7240S
46 specifications	A NEC DVD RW drive AD-7241S View product	B NEC DVD RW drive AD7240S View product
Performanceidentical
Burst transfer rateKnown for one	Unknown — not stated by the source	150 MB/s
LightScribeKnown for one	Yes	Unknown — not stated by the source
Reading speedidentical
DVD-R Double Layer read speedKnown for one	Unknown — not stated by the source	12x
Access time2 differ
DVD drive average random access timeDiffers	140 ms	160 ms
CD-ROM drive average random access timeDiffers	160 ms	140 ms
Record modesidentical
Fixed packetKnown for one	Unknown — not stated by the source	Yes
Packet writingKnown for one	Unknown — not stated by the source	Yes
Variable packetKnown for one	Unknown — not stated by the source	Yes
Other features2 differ
Dimensions (WxDxH)Differs	142 x 42 x 170 mm	148 x 42 x 170 mm
Compatible operating systemsDiffers	Windows Vista Home Basic, Home Premium, Ultimate, Business Windows XP Home/Professional MultiRead, PC2001	Microsoft Vista
Additional accessoriesKnown for one	Unknown — not stated by the source	Yes
Technical featuresKnown for one	Unknown — not stated by the source	MultiRead, PC2001
Minimum RAMKnown for one	256 MB	Unknown — not stated by the source
Minimum processorKnown for one	Pentium III 1.0GHz	Unknown — not stated by the source
Minimum storage drive spaceKnown for one	1 GB	Unknown — not stated by the source
Maximum data transfer rateKnown for one	150 Mbit/s	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.