Product comparison · 2 modems

StarTech.com External V.92 56K USB Fax Modem – Dial up Data 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 -

17specifications compared
15differ
2identical
18known for one product only

Key differences

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 2 mm more depth than the StarTech.com External V.92 56K USB Fax Modem – Dial up Data Modem (77 mm vs 75 mm). 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 2 mm more height than the StarTech.com External V.92 56K USB Fax Modem – Dial up Data Modem (20 mm vs 18 mm). 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 3 g more weight than the StarTech.com External V.92 56K USB Fax Modem – Dial up Data Modem (28 g vs 25 g). Chipset: Agere/LSI SV92U2C on the StarTech.com External V.92 56K USB Fax Modem – Dial up Data Modem, Conexant - CX93010-21Z 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 -. LED indicators: Yes on the StarTech.com External V.92 56K USB Fax Modem – Dial up Data 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 -.

Chipset
- External V.92 56K USB Fax Modem – Dial up Data Modem:Agere/LSI SV92U2C
- 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 -:Conexant - CX93010-21Z
LED indicators
- External V.92 56K USB Fax Modem – Dial up Data Modem:Yes
- 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 – Dial up Data Modem:0 - 55 °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 – Dial up Data Modem:20 - 80%
- 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 – Dial up Data Modem:10 - 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 -:-10 - 70 °C
Depth
- External V.92 56K USB Fax Modem – Dial up Data Modem:75 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 – Dial up Data Modem:18 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
Weight
- External V.92 56K USB Fax Modem – Dial up Data Modem:25 g
- 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 -:28 g

Side by side

Differences highlightedShow differences only

Comparison of USB56KEM3, USB56KEMH2
35 specifications	A StarTech.com External V.92 56K USB Fax Modem – Dial up Data Modem Model USB56KEM3 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
Modem1 differ
InterfaceKnown for one	Unknown — not stated by the source	USB 2.0
ChipsetDiffers	Agere/LSI SV92U2C	Conexant - CX93010-21Z
Performance1 differ
Supported data transfer ratesDiffers	56/48/14.4 Kbit/s	56 Kbps Down, 36.6 Kbps Up, 14.4 Kbps Fax
Upstream data rateKnown for one	Unknown — not stated by the source	0.036 Mbit/s
Downstream data rateKnown for one	Unknown — not stated by the source	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
Data compressionKnown for one	V.44	Unknown — not stated by the source
Features1 differ
LED indicatorsDiffers	Yes	Data
InternalKnown for one	No	Unknown — not stated by the source
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
System requirements1 differ
Compatible operating systemsDiffers	Windows ME/ 2000/ XP(32/64-bit)/ Vista(32/64-bit)/ 7(32/64-bit)/ Server 2008 R2	- 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 - 55 °C	0 - 60 °C
Operating relative humidity (H-H)Differs	20 - 80%	10 - 90%
Storage temperature (T-T)Differs	10 - 70 °C	-10 - 70 °C
Weight & dimensions4 differ
DepthDiffers	75 mm	77 mm
HeightDiffers	18 mm	20 mm
WeightDiffers	25 g	28 g
WidthDiffers	25 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 data4 differ
Package depthDiffers	170 mm	166 mm
Package dimensions (WxDxH)Known for one	Unknown — not stated by the source	136 x 163 x 32 mm
Package heightDiffers	35 mm	36 mm
Package weightDiffers	180 g	136 g
Package widthDiffers	142 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
USB poweredKnown for one	Yes	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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