Product comparison · 2 modems

D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router vs Zyxel P-871M VDSL Modem

8specifications compared
8differ
0identical
13known for one product only

Key differences

The Zyxel P-871M VDSL Modem has 36.5 Mbit/s more upstream data rate than the D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router (40 Mbit/s vs 3.5 Mbit/s). The Zyxel P-871M VDSL Modem has 56 Mbit/s more downstream data rate than the D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router (80 Mbit/s vs 24 Mbit/s). The D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router has 3 more Ethernet LAN (RJ-45) ports than the Zyxel P-871M VDSL Modem (4 vs 1).

Upstream data rate
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:3.5 Mbit/s
- P-871M VDSL Modem:40 Mbit/s
Downstream data rate
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:24 Mbit/s
- P-871M VDSL Modem:80 Mbit/s
Ethernet LAN (RJ-45) ports
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:4
- P-871M VDSL Modem:1
Depth
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:150 mm
- P-871M VDSL Modem:132 mm
Height
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:33 mm
- P-871M VDSL Modem:40 mm
Weight
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:318 g
- P-871M VDSL Modem:307 g
Width
- DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router:193 mm
- P-871M VDSL Modem:189 mm

Side by side

Differences highlightedShow differences only

Comparison of DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router, P-871M VDSL Modem
21 specifications	A D-Link DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router View product	B Zyxel P-871M VDSL Modem View product
Modemidentical
Modem typeKnown for one	ADSL2, ADSL2+	Unknown — not stated by the source
InterfaceKnown for one	ADSL2, ADSL2+	Unknown — not stated by the source
Performance2 differ
Upstream data rateDiffers	3.5 Mbit/s	40 Mbit/s
Downstream data rateDiffers	24 Mbit/s	80 Mbit/s
Data link protocolsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.1D
Featuresidentical
Connectivity LEDsKnown for one	DSL, LAN, Internet	Unknown — not stated by the source
Ports & interfaces1 differ
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsDiffers	4	1
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
Certificates1 differ
CertificationDiffers	7.6” x 5.9” x 1.3 10.8” x 8.2” x 2.7	- EN55022 - EN61000-3-2: 2000 - EN61000-3-3: 1995+A1: 2001 - FCC Abschnitt 15 - CSA 60950-1 - UL 60950-1 - EN 60950-1: 2001+A11 - IEC 60950-1: 2001
Compliance industry standardsKnown for one	TR-067, TR-069	Unknown — not stated by the source
Compliance certificatesKnown for one	Unknown — not stated by the source	Federal Communications Commission (FCC)
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 40 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-20 - 65 °C	Unknown — not stated by the source
Weight & dimensions4 differ
DepthDiffers	150 mm	132 mm
HeightDiffers	33 mm	40 mm
WeightDiffers	318 g	307 g
WidthDiffers	193 mm	189 mm
Packaging dataidentical
Package dimensions (WxDxH)Known for one	274 x 208 x 69 mm	Unknown — not stated by the source
Package weightKnown for one	953 g	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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