Product comparison · 2 modems

D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router 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
13differ
1identical
22known for one product only

Key differences

The D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router has 3.464 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 - (3.5 Mbit/s vs 0.036 Mbit/s). The D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router has 23.944 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 - (24 Mbit/s vs 0.056 Mbit/s). The D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router has 73 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 - (150 mm vs 77 mm). Interface: ADSL2, ADSL2+ on the D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router, USB 2.0 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 -. Certification: 7.6” x 5.9” x 1.3 10.8” x 8.2” x 2.7 on the D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router, CE, FCC, RoHS, REACH, TAA 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 -.

Interface
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:ADSL2, ADSL2+
- 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 -:USB 2.0
Upstream data rate
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:3.5 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
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:24 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
Operating temperature (T-T)
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:0 - 40 °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)
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router: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)
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:-20 - 65 °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
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:150 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
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:33 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 DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router, USB56KEMH2
36 specifications	A D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router 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
Modem speedKnown for one	Unknown — not stated by the source	56 Kbit/s
InterfaceDiffers	ADSL2, ADSL2+	USB 2.0
ChipsetKnown for one	Unknown — not stated by the source	Conexant - CX93010-21Z
Modem typeKnown for one	ADSL2, ADSL2+	Unknown — not stated by the source
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	3.5 Mbit/s	0.036 Mbit/s
Downstream data rateDiffers	24 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
Featuresidentical
LED indicatorsKnown for one	Unknown — not stated by the source	Data
Connectivity LEDsKnown for one	DSL, LAN, Internet	Unknown — not stated by the source
Ports & interfacesidentical
Modem (RJ-11) ports	1	1
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsKnown for one	4	Unknown — not stated by the source
System requirementsidentical
Compatible operating systemsKnown for one	Unknown — not stated by the source	- 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
Certificates1 differ
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS, CE, Federal Communications Commission (FCC), REACH, Trade Agreements Act (TAA)
CertificationDiffers	7.6” x 5.9” x 1.3 10.8” x 8.2” x 2.7	CE, FCC, RoHS, REACH, TAA
Compliance industry standardsKnown for one	TR-067, TR-069	Unknown — not stated by the source
Operational conditions3 differ
Operating temperature (T-T)Differs	0 - 40 °C	0 - 60 °C
Operating relative humidity (H-H)Differs	5 - 95%	10 - 90%
Storage temperature (T-T)Differs	-20 - 65 °C	-10 - 70 °C
Weight & dimensions4 differ
DepthDiffers	150 mm	77 mm
HeightDiffers	33 mm	20 mm
WeightDiffers	318 g	28 g
WidthDiffers	193 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 data2 differ
Package depthKnown for one	Unknown — not stated by the source	166 mm
Package dimensions (WxDxH)Differs	274 x 208 x 69 mm	136 x 163 x 32 mm
Package heightKnown for one	Unknown — not stated by the source	36 mm
Package weightDiffers	953 g	136 g
Package widthKnown for one	Unknown — not stated by the source	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)

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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