Product comparison · 2 modems

D-Link DSL-520B modem vs Zyxel P-871H modem

10specifications compared
7differ
3identical
16known for one product only

Key differences

The Zyxel P-871H modem has 96.5 Mbit/s more upstream data rate than the D-Link DSL-520B modem (100 Mbit/s vs 3.5 Mbit/s). The Zyxel P-871H modem has 76 Mbit/s more downstream data rate than the D-Link DSL-520B modem (100 Mbit/s vs 24 Mbit/s). The Zyxel P-871H modem has 3 more Ethernet LAN (RJ-45) ports than the D-Link DSL-520B modem (4 vs 1). Power supply type: 100-240 VAC, 50/60 Hz on the D-Link DSL-520B modem, 200 - 240 V AC on the Zyxel P-871H modem. Operating temperature (T-T): 0 - 40 °C on the D-Link DSL-520B modem, 0 - 50 °C on the Zyxel P-871H modem.

Upstream data rate
- DSL-520B modem:3.5 Mbit/s
- P-871H modem:100 Mbit/s
Downstream data rate
- DSL-520B modem:24 Mbit/s
- P-871H modem:100 Mbit/s
Ethernet LAN (RJ-45) ports
- DSL-520B modem:1
- P-871H modem:4
Power supply type
- DSL-520B modem:100-240 VAC, 50/60 Hz
- P-871H modem:200 - 240 V AC
Operating temperature (T-T)
- DSL-520B modem:0 - 40 °C
- P-871H modem:0 - 50 °C
Operating relative humidity (H-H)
- DSL-520B modem:-5 - 95%
- P-871H modem:10 - 90%

Side by side

Differences highlightedShow differences only

Comparison of DSL-520B, P-871H
26 specifications	A D-Link DSL-520B modem Model DSL-520B View product	B Zyxel P-871H modem Model P-871H View product
Modemidentical
InterfaceKnown for one	RJ-11, RJ-45	Unknown — not stated by the source
Modem typeKnown for one	Unknown — not stated by the source	VDSL2
Performance2 differ
Upstream data rateDiffers	3.5 Mbit/s	100 Mbit/s
Downstream data rateDiffers	24 Mbit/s	100 Mbit/s
MAC address filteringKnown for one	Yes	Unknown — not stated by the source
Supported protocolsKnown for one	- ATM Adaption Layer type 5 (AAL5) - Bridged or routed Ethernet encapsulation - VC and LLC based multiplexing - MAC Encapsulated Routing - ATM Forum UNI3.1/4.0 PVC - ATM Cell Format ITU-T Rec. I.361 - PPP over ATM (RFC 2364) - PPP over Ethernet (PPPoE) - PPP Link Control Protocol (LCP) - Internet Pr	Unknown — not stated by the source
Supported data transfer ratesKnown for one	Unknown — not stated by the source	10/100 Mbit/s
Featuresidentical
Internal	No	No
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
Plug and Play	Yes	Yes
Power LEDKnown for one	Yes	Unknown — not stated by the source
Flow control supportKnown for one	Unknown — not stated by the source	Yes
Connectivity LEDsKnown for one	Unknown — not stated by the source	System, VDSL, 10/100Base-TX
Ports & interfaces1 differ
Connector(s)Known for one	RJ-11, RJ-45	Unknown — not stated by the source
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsDiffers	1	4
Modem (RJ-11) ports	1	1
Power1 differ
Power supply typeDiffers	100-240 VAC, 50/60 Hz	200 - 240 V AC
Certificates1 differ
Compliance industry standardsDiffers	ADSL: Multi-mode, ANSI T1.413 Issue 2, ITU-T G.992.1 (G.dmt) Annex A, ITU-T G.992.2 (G.lite) Annex, AITU-T G.994.1 (G.hs), ADSL2: ITU-T G.992.3 (G.dmt.bis) Annex A/L/M ITU-T G.992.4 (G.lite.bis) Annex A, ADSL2+: ITU-T G.992.5 Annex A/M	IEEE 802.3/3u/3x
Operational conditions2 differ
Operating temperature (T-T)Differs	0 - 40 °C	0 - 50 °C
Operating relative humidity (H-H)Differs	-5 - 95%	10 - 90%
Storage temperature (T-T)Known for one	-20 - 70 °C	Unknown — not stated by the source
Weight & dimensionsidentical
DepthKnown for one	Unknown — not stated by the source	127 mm
HeightKnown for one	Unknown — not stated by the source	35 mm
WeightKnown for one	Unknown — not stated by the source	350 g
WidthKnown for one	Unknown — not stated by the source	180 mm

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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