Product comparison · 2 optical disc drives

Lenovo CD-ROM USB PORTABLE DRIVE vs Lenovo Combo int Multiburner Ultrabay Enhanced

Key differences

Internal
- CD-ROM USB PORTABLE DRIVE:No
- Combo int Multiburner Ultrabay Enhanced:Yes
Drive device, buffer size
- CD-ROM USB PORTABLE DRIVE:0.125 MB
- Combo int Multiburner Ultrabay Enhanced:2 MB
CD read speed
- CD-ROM USB PORTABLE DRIVE:10x
- Combo int Multiburner Ultrabay Enhanced:16x
Access time
- CD-ROM USB PORTABLE DRIVE:250 ms
- Combo int Multiburner Ultrabay Enhanced:110 ms
Operating relative humidity (H-H)
- CD-ROM USB PORTABLE DRIVE:8 - 80%
- Combo int Multiburner Ultrabay Enhanced:10 - 80%
Operating temperature (T-T)
- CD-ROM USB PORTABLE DRIVE:10 - 50 °C
- Combo int Multiburner Ultrabay Enhanced:5 - 35 °C
Weight
- CD-ROM USB PORTABLE DRIVE:275 g
- Combo int Multiburner Ultrabay Enhanced:240 g
Dimensions (WxDxH)
- CD-ROM USB PORTABLE DRIVE:130 x 146 x 15 mm
- Combo int Multiburner Ultrabay Enhanced:128 x 129 x 13 mm

Differences highlightedShow differences only

Comparison of CD-ROM USB PORTABLE DRIVE, Combo int Multiburner Ultrabay Enhanced
16 specifications	A Lenovo CD-ROM USB PORTABLE DRIVE View product	B Lenovo Combo int Multiburner Ultrabay Enhanced View product
Design1 differ
InternalDiffers	No	Yes
Performance1 differ
Drive device, buffer sizeDiffers	0.125 MB	2 MB
Burst transfer rateKnown for one	Unknown — not stated by the source	16.6 MB/s
Writing speedidentical
CD write speedKnown for one	Unknown — not stated by the source	24x
CD rewrite speedKnown for one	Unknown — not stated by the source	8x
Reading speed1 differ
CD read speedDiffers	10x	16x
DVD read speedKnown for one	Unknown — not stated by the source	8x
Access time1 differ
DVD drive average random access timeKnown for one	Unknown — not stated by the source	130 ms
Access timeDiffers	250 ms	110 ms
Operational conditions2 differ
Operating relative humidity (H-H)Differs	8 - 80%	10 - 80%
Operating temperature (T-T)Differs	10 - 50 °C	5 - 35 °C
Weight & dimensions1 differ
WeightDiffers	275 g	240 g
Other features2 differ
Dimensions (WxDxH)Differs	130 x 146 x 15 mm	128 x 129 x 13 mm
Compatible operating systemsDiffers	Microsoft Windows 98, Windows 2000, Windows ME	Microsoft Windows 2000, Windows XP
Media types supportedKnown for one	CD Enhanced, CD-ROM, CD-R, CD-DA, CD-I, CD-ROM Mode - 1 Data Disc, CD-ROM Mode - 2 Data Disc, CD-ROM XA, CD-RW, CD-Text, Photo CD, Video CD	Unknown — not stated by the source
I/O portsKnown for one	USB	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.