Product comparison · 2 modems

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 - vs Zyxel P-871M modem

13specifications compared
13differ
0identical
27known for one product only

Key differences

The Zyxel P-871M modem has 39.964 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 - (40 Mbit/s vs 0.036 Mbit/s). The Zyxel P-871M modem has 79.944 Mbit/s more downstream 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 - (80 Mbit/s vs 0.056 Mbit/s). The Zyxel P-871M modem has 55 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 - (132 mm vs 77 mm). LED indicators: 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 -, Yes on the Zyxel P-871M modem. Operating temperature (T-T): 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 -, 0 - 40 °C on the Zyxel P-871M modem.

Upstream data rate
- 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
- P-871M modem:40 Mbit/s
Downstream data rate
- 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
- P-871M modem:80 Mbit/s
LED indicators
- 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
- P-871M modem:Yes
Operating temperature (T-T)
- 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
- P-871M modem:0 - 40 °C
Operating relative humidity (H-H)
- 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%
- P-871M modem:20 - 85%
Storage temperature (T-T)
- 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
- P-871M modem:-20 - 60 °C
Depth
- 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
- P-871M modem:132 mm
Height
- 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
- P-871M modem:40 mm

Side by side

Differences highlightedShow differences only

Comparison of USB56KEMH2, P-871M
40 specifications	A 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	B Zyxel P-871M modem Model P-871M View product
Modemidentical
Modem speedKnown for one	56 Kbit/s	Unknown — not stated by the source
InterfaceKnown for one	USB 2.0	Unknown — not stated by the source
ChipsetKnown for one	Conexant - CX93010-21Z	Unknown — not stated by the source
Performance3 differ
Supported data transfer ratesKnown for one	56 Kbps Down, 36.6 Kbps Up, 14.4 Kbps Fax	Unknown — not stated by the source
Upstream data rateDiffers	0.036 Mbit/s	40 Mbit/s
Downstream data rateDiffers	0.056 Mbit/s	80 Mbit/s
Maximum fax transfer rateKnown for one	14.4 Kbps	Unknown — not stated by the source
Supported protocolsDiffers	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	1 x WAN (RJ45)
Networking featuresKnown for one	Unknown — not stated by the source	Ethernet, Fast Ethernet, VDSL1/2
Features1 differ
LED indicatorsDiffers	Data	Yes
Flow control supportKnown for one	Unknown — not stated by the source	Yes
InternalKnown for one	Unknown — not stated by the source	No
Connectivity LEDsKnown for one	Unknown — not stated by the source	Yes
Ports & interfacesidentical
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
DC-in jackKnown for one	Unknown — not stated by the source	Yes
Ethernet LAN (RJ-45) portsKnown for one	Unknown — not stated by the source	1
System requirementsidentical
Compatible operating systemsKnown for one	- 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	Unknown — not stated by the source
Certificates2 differ
Compliance certificatesDiffers	RoHS, CE, Federal Communications Commission (FCC), REACH, Trade Agreements Act (TAA)	Federal Communications Commission (FCC)
CertificationDiffers	CE, FCC, RoHS, REACH, TAA	EN55022 Class B, EN61000-3-2: 2000, EN61000-3-3: 1995+A1:2001, FCC Part 15 (Class B), CSA 60950-1, UL 60950-1, EN 60950-1:2001+A11, IEC 60950-1:2001
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.1D
Operational conditions3 differ
Operating temperature (T-T)Differs	0 - 60 °C	0 - 40 °C
Operating relative humidity (H-H)Differs	10 - 90%	20 - 85%
Storage temperature (T-T)Differs	-10 - 70 °C	-20 - 60 °C
Non-operating relative humidity (non-condensing)Known for one	Unknown — not stated by the source	20 - 90%
Weight & dimensions4 differ
DepthDiffers	77 mm	132 mm
HeightDiffers	20 mm	40 mm
WeightDiffers	28 g	307 g
WidthDiffers	27 mm	189 mm
Packaging contentidentical
Cables includedKnown for one	Phone (RJ-11)	Unknown — not stated by the source
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Packaging dataidentical
Package depthKnown for one	166 mm	Unknown — not stated by the source
Package dimensions (WxDxH)Known for one	136 x 163 x 32 mm	Unknown — not stated by the source
Package heightKnown for one	36 mm	Unknown — not stated by the source
Package weightKnown for one	136 g	Unknown — not stated by the source
Package widthKnown for one	139 mm	Unknown — not stated by the source
Logistics dataidentical
Master (outer) case heightKnown for one	369 mm	Unknown — not stated by the source
Master (outer) case lengthKnown for one	379 mm	Unknown — not stated by the source
Master (outer) case widthKnown for one	725 mm	Unknown — not stated by the source
Products per master (outer) caseKnown for one	100 pc(s)	Unknown — not stated by the source
Poweridentical
USB poweredKnown for one	Unknown — not stated by the source	No

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.

More modem comparisons

All modem comparisons