Product comparison · 2 modems

Zyxel P-660ME-I V2 vs Zyxel P-871M VDSL2

9specifications compared
5differ
4identical
17known for one product only

Key differences

I/O ports
- P-660ME-I V2:1 x USB 1 x DSL
- P-871M VDSL2:1 x WAN (RJ45), 1x DB9
Depth
- P-660ME-I V2:107 mm
- P-871M VDSL2:132 mm
Height
- P-660ME-I V2:36 mm
- P-871M VDSL2:40 mm
Width
- P-660ME-I V2:110 mm
- P-871M VDSL2:189 mm

Side by side

Differences highlightedShow differences only

Comparison of P-660ME-I V2, P-871M VDSL2
26 specifications	A Zyxel P-660ME-I V2 View product	B Zyxel P-871M VDSL2 View product
Performance1 differ
Upstream data rateKnown for one	Unknown — not stated by the source	40 Mbit/s
Downstream data rateKnown for one	Unknown — not stated by the source	80 Mbit/s
Networking featuresDiffers	Ethernet	Ethernet, Fast Ethernet, VDSL1/2
Supported data transfer ratesKnown for one	10/100 Mbps	Unknown — not stated by the source
Supported protocolsKnown for one	HTTP, Mail, FTP, VoIP	Unknown — not stated by the source
Featuresidentical
Flow control supportKnown for one	Unknown — not stated by the source	Yes
Internal	No	No
Connectivity LEDs	Yes	Yes
Ports & interfaces1 differ
DC-in jack	Yes	Yes
Ethernet LAN (RJ-45) ports	1	1
I/O portsDiffers	1 x USB 1 x DSL	1 x WAN (RJ45), 1x DB9
Poweridentical
Power supply typeKnown for one	Unknown — not stated by the source	9V AC 1000mA
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	Federal Communications Commission (FCC)
SafetyKnown for one	Unknown — not stated by the source	CSA 60950-1, UL 60950-1, EN 60950-1:2001+A11, IEC 60950-1:2001
CertificationKnown for one	Unknown — not stated by the source	EN55022 Class B, EN61000-3-2: 2000, EN61000-3-3: 1995+A1:2001, FCC Part 15 (Class B)
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.1D
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 40 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	20 - 85%
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 60 °C
Non-operating relative humidity (non-condensing)Known for one	Unknown — not stated by the source	20 - 90%
Weight & dimensions3 differ
DepthDiffers	107 mm	132 mm
HeightDiffers	36 mm	40 mm
WeightKnown for one	Unknown — not stated by the source	307 g
WidthDiffers	110 mm	189 mm
Modemidentical
Modem typeKnown for one	ADSL	Unknown — not stated by the source
InterfaceKnown for one	Ethernet, USB	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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