Product comparison · 2 modems

Lenovo IBM modem vs Lenovo USB Modem

6specifications compared
6differ
0identical
6known for one product only

Key differences

Modem speed
- IBM modem:128 Kbit/s
- USB Modem:56 Kbit/s
Operating temperature (T-T)
- IBM modem:0 - 70 °C
- USB Modem:5 - 35 °C
Operating relative humidity (H-H)
- IBM modem:0 - 80%
- USB Modem:8 - 95%
Depth
- IBM modem:5 mm
- USB Modem:74.9 mm
Height
- IBM modem:85.6 mm
- USB Modem:18 mm
Width
- IBM modem:54 mm
- USB Modem:26.2 mm

Side by side

Differences highlightedShow differences only

Comparison of IBM modem, USB Modem
12 specifications	A Lenovo IBM modem View product	B Lenovo USB Modem View product
Modem1 differ
Modem speedDiffers	128 Kbit/s	56 Kbit/s
InterfaceKnown for one	ISDN	Unknown — not stated by the source
Performanceidentical
Data link protocolsKnown for one	EIA 578 Class 1, HDLC, ISDN, ITU-T V.17, ITU-T V.21 Ch.2, ITU-T V.27ter, ITU-T V.29, Multilink PP V.120, Multilink PPPV.110/X.25, PPP, T.30 EIA/TIA 578 Class 1, X.25	Unknown — not stated by the source
Featuresidentical
Built-in processorKnown for one	Intel Pentium 133 MHz	Unknown — not stated by the source
System requirementsidentical
Compatible operating systemsKnown for one	Windows 9x/2000/NT 4.0/OS 2 Warp 4/Linux	Unknown — not stated by the source
Operational conditions2 differ
Operating temperature (T-T)Differs	0 - 70 °C	5 - 35 °C
Operating relative humidity (H-H)Differs	0 - 80%	8 - 95%
Weight & dimensions3 differ
DepthDiffers	5 mm	74.9 mm
HeightDiffers	85.6 mm	18 mm
WidthDiffers	54 mm	26.2 mm
WeightKnown for one	Unknown — not stated by the source	32 g
Certificatesidentical
SafetyKnown for one	Unknown — not stated by the source	CE MARK, UL-60950, C-UL, ACA/C-Tick

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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