Product comparison · 2 optical disc drives

Lenovo CD-RW/DVD-ROM Combo Drive vs Lenovo USB 2.0 Portable CD-RW Drive

Key differences

Internal
- CD-RW/DVD-ROM Combo Drive:Yes
- USB 2.0 Portable CD-RW Drive:No
CD write speed
- CD-RW/DVD-ROM Combo Drive:48x
- USB 2.0 Portable CD-RW Drive:8x
CD rewrite speed
- CD-RW/DVD-ROM Combo Drive:32x
- USB 2.0 Portable CD-RW Drive:4x
CD read speed
- CD-RW/DVD-ROM Combo Drive:48x
- USB 2.0 Portable CD-RW Drive:24x
Operating relative humidity (H-H)
- CD-RW/DVD-ROM Combo Drive:10 - 80%
- USB 2.0 Portable CD-RW Drive:8 - 85%
Operating temperature (T-T)
- CD-RW/DVD-ROM Combo Drive:5 - 45 °C
- USB 2.0 Portable CD-RW Drive:5 - 40 °C
Dimensions (WxDxH)
- CD-RW/DVD-ROM Combo Drive:149 x 190 x 41.5 mm
- USB 2.0 Portable CD-RW Drive:140 x 146 x 15 mm

Differences highlightedShow differences only

Comparison of CD-RW/DVD-ROM Combo Drive, USB 2.0 Portable CD-RW Drive
16 specifications	A Lenovo CD-RW/DVD-ROM Combo Drive View product	B Lenovo USB 2.0 Portable CD-RW Drive View product
Design1 differ
InternalDiffers	Yes	No
Product colour	Black	Black
Performanceidentical
Drive device, buffer size	2 MB	2 MB
Writing speed2 differ
CD write speedDiffers	48x	8x
CD rewrite speedDiffers	32x	4x
Reading speed1 differ
CD read speedDiffers	48x	24x
DVD read speedKnown for one	16x	Unknown — not stated by the source
Access timeidentical
Access timeKnown for one	140 ms	Unknown — not stated by the source
Operational conditions2 differ
Operating relative humidity (H-H)Differs	10 - 80%	8 - 85%
Operating temperature (T-T)Differs	5 - 45 °C	5 - 40 °C
Weight & dimensionsidentical
WeightKnown for one	900 g	Unknown — not stated by the source
Other features1 differ
Dimensions (WxDxH)Differs	149 x 190 x 41.5 mm	140 x 146 x 15 mm
Drive device, transfer rateKnown for one	7.5 MB/s	Unknown — not stated by the source
Media types supportedKnown for one	Unknown — not stated by the source	CD-Audio, CD Enhanced, CD-Extra, CD-DA, CD-R, CD-I, CD-RW, CD-ROM, CD-Text, Video CD, Photo CD
Compatible operating systemsKnown for one	Unknown — not stated by the source	-Microsoft Windows XP -Microsoft Windows 2000 -Microsoft Windows Me -Microsoft Windows 98
I/O portsKnown for one	Unknown — not stated by the source	USB

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.