Product comparison · 2 modems

StarTech.com External V.92 56K USB Fax Modem vs StarTech.com USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -

14specifications compared
14differ
0identical
19known for one product only

Key differences

The StarTech.com External V.92 56K USB Fax Modem has 0.011 Mbit/s more upstream data rate than the StarTech.com USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem - (0.047 Mbit/s vs 0.036 Mbit/s). The StarTech.com USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem - has 0.001 Mbit/s more downstream data rate than the StarTech.com External V.92 56K USB Fax Modem (0.056 Mbit/s vs 0.055 Mbit/s). The StarTech.com External V.92 56K USB Fax Modem has 118 mm more depth than the StarTech.com USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem - (195 mm vs 77 mm). LED indicators: Power on the StarTech.com External V.92 56K USB Fax Modem, Data on the StarTech.com USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -. Operating temperature (T-T): 0 - 70 °C on the StarTech.com External V.92 56K USB Fax Modem, 0 - 60 °C on the StarTech.com USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -.

Upstream data rate
- External V.92 56K USB Fax Modem:0.047 Mbit/s
- USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -:0.036 Mbit/s
Downstream data rate
- External V.92 56K USB Fax Modem:0.055 Mbit/s
- USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -:0.056 Mbit/s
LED indicators
- External V.92 56K USB Fax Modem:Power
- USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -:Data
Operating temperature (T-T)
- External V.92 56K USB Fax Modem:0 - 70 °C
- USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -:0 - 60 °C
Operating relative humidity (H-H)
- External V.92 56K USB Fax Modem:5 - 95%
- USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -:10 - 90%
Storage temperature (T-T)
- External V.92 56K USB Fax Modem:-20 - 85 °C
- USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -:-10 - 70 °C
Depth
- External V.92 56K USB Fax Modem:195 mm
- USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -:77 mm
Height
- External V.92 56K USB Fax Modem:21 mm
- USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem -:20 mm

Side by side

Differences highlightedShow differences only

Comparison of USB56KEM2, USB56KEMH2
33 specifications	A StarTech.com External V.92 56K USB Fax Modem Model USB56KEM2 View product	B StarTech.com USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem - Model USB56KEMH2 View product
Modemidentical
Modem speedKnown for one	Unknown — not stated by the source	56 Kbit/s
InterfaceKnown for one	Unknown — not stated by the source	USB 2.0
ChipsetKnown for one	Unknown — not stated by the source	Conexant - CX93010-21Z
Performance2 differ
Supported data transfer ratesKnown for one	Unknown — not stated by the source	56 Kbps Down, 36.6 Kbps Up, 14.4 Kbps Fax
Upstream data rateDiffers	0.047 Mbit/s	0.036 Mbit/s
Downstream data rateDiffers	0.055 Mbit/s	0.056 Mbit/s
Maximum fax transfer rateKnown for one	Unknown — not stated by the source	14.4 Kbps
Supported protocolsKnown for one	Unknown — not stated by the source	Modem ITU-T V.92 / V.90, V.34, V.32bis, V.32, V.22bis, V.22, V.23, V.21 Bell 212A, Bell 103 Fax V.17, V.29, V.27 Ter, V.21 channel 2 Data V.44, V.42bis, MNP 5
Features1 differ
LED indicatorsDiffers	Power	Data
Ports & interfacesidentical
Modem (RJ-11) portsKnown for one	Unknown — not stated by the source	1
Connector(s)Known for one	RJ-11, USB A	Unknown — not stated by the source
System requirements1 differ
Compatible operating systemsDiffers	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 +	- Windows 7, 8, 8.1, 10 - Windows Server 2008 R2, 2012 R2, 2016, 2019 - Mac OS 10.9 to 10.10 - Linux kernel 3.16 to 4.4 LTS
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS, CE, Federal Communications Commission (FCC), REACH, Trade Agreements Act (TAA)
CertificationKnown for one	Unknown — not stated by the source	CE, FCC, RoHS, REACH, TAA
Operational conditions3 differ
Operating temperature (T-T)Differs	0 - 70 °C	0 - 60 °C
Operating relative humidity (H-H)Differs	5 - 95%	10 - 90%
Storage temperature (T-T)Differs	-20 - 85 °C	-10 - 70 °C
Weight & dimensions4 differ
DepthDiffers	195 mm	77 mm
HeightDiffers	21 mm	20 mm
WeightDiffers	50 g	28 g
WidthDiffers	32 mm	27 mm
Packaging contentidentical
Cables includedKnown for one	Unknown — not stated by the source	Phone (RJ-11)
Quick start guideKnown for one	Unknown — not stated by the source	Yes
Packaging data3 differ
Package depthDiffers	140 mm	166 mm
Package dimensions (WxDxH)Known for one	Unknown — not stated by the source	136 x 163 x 32 mm
Package heightDiffers	131 mm	36 mm
Package weightKnown for one	Unknown — not stated by the source	136 g
Package widthDiffers	37.5 mm	139 mm
Logistics dataidentical
Master (outer) case heightKnown for one	Unknown — not stated by the source	369 mm
Master (outer) case lengthKnown for one	Unknown — not stated by the source	379 mm
Master (outer) case widthKnown for one	Unknown — not stated by the source	725 mm
Products per master (outer) caseKnown for one	Unknown — not stated by the source	100 pc(s)
Poweridentical
Power consumption (typical)Known for one	0.1 W	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.

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