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
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.