StarTech.com USB 56K vs StarTech.com External V.92 56K USB Fax Modem

Comparison of USB 56K, USB56KEM2

20 specifications	A StarTech.com USB 56KView product	B StarTech.com External V.92 56K USB Fax Modem Model USB56KEM2 View product
Performanceidentical
Upstream data rateKnown for one	—Unknown — not stated by the source	0.047 Mbit/s
Downstream data rateKnown for one	—Unknown — not stated by the source	0.055 Mbit/s
Data compressionKnown for one	V.44	—Unknown — not stated by the source
Featuresidentical
LED indicatorsKnown for one	—Unknown — not stated by the source	Power
Ports & interfaces1 differ
Connector(s)Differs	1 - USB A, 1 - RJ11	RJ-11, USB A
Modem (RJ-11) portsKnown for one	1	—Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	—Unknown — not stated by the source	0.1 W
System requirements1 differ
Compatible operating systemsDiffers	Windows 98SE/ME/2000/XP & Vista	Windows ME/2000/ XP(32/64bit)/Vista(32/64bit)/ Server 2008 R2/7(32/64bit)/8(32/64-bit) Mac OS 10.5 Linux kernel 2.6.18 +
Operational conditionsidentical
Operating temperature (T-T)Known for one	—Unknown — not stated by the source	0 - 70 °C
Operating relative humidity (H-H)Known for one	—Unknown — not stated by the source	5 - 95%
Storage temperature (T-T)Known for one	—Unknown — not stated by the source	-20 - 85 °C
Weight & dimensionsidentical
DepthKnown for one	—Unknown — not stated by the source	195 mm
HeightKnown for one	—Unknown — not stated by the source	21 mm
WeightKnown for one	—Unknown — not stated by the source	50 g
WidthKnown for one	—Unknown — not stated by the source	32 mm
Packaging dataidentical
Package depthKnown for one	—Unknown — not stated by the source	140 mm
Package heightKnown for one	—Unknown — not stated by the source	131 mm
Package widthKnown for one	—Unknown — not stated by the source	37.5 mm
Modemidentical
Modem speedKnown for one	56 Kbit/s	—Unknown — not stated by the source
InterfaceKnown 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.