Product comparison · 2 modems

Motorola SB5120 modem vs Zyxel P-871M modem

10specifications compared
7differ
3identical
20known for one product only

Key differences

The Zyxel P-871M modem has 10 Mbit/s more upstream data rate than the Motorola SB5120 modem (40 Mbit/s vs 30 Mbit/s). The Zyxel P-871M modem has 42 Mbit/s more downstream data rate than the Motorola SB5120 modem (80 Mbit/s vs 38 Mbit/s). The Zyxel P-871M modem has 73.6 mm more depth than the Motorola SB5120 modem (132 mm vs 58.4 mm). Operating relative humidity (H-H): 0 - 95% on the Motorola SB5120 modem, 20 - 85% on the Zyxel P-871M modem. Storage temperature (T-T): -30 - 80 °C on the Motorola SB5120 modem, -20 - 60 °C on the Zyxel P-871M modem.

Upstream data rate
- SB5120 modem:30 Mbit/s
- P-871M modem:40 Mbit/s
Downstream data rate
- SB5120 modem:38 Mbit/s
- P-871M modem:80 Mbit/s
Operating relative humidity (H-H)
- SB5120 modem:0 - 95%
- P-871M modem:20 - 85%
Storage temperature (T-T)
- SB5120 modem:-30 - 80 °C
- P-871M modem:-20 - 60 °C
Depth
- SB5120 modem:58.4 mm
- P-871M modem:132 mm
Height
- SB5120 modem:152.4 mm
- P-871M modem:40 mm
Width
- SB5120 modem:157.5 mm
- P-871M modem:189 mm

Side by side

Differences highlightedShow differences only

Comparison of SB5120, P-871M
30 specifications	A Motorola SB5120 modem Model SB5120 View product	B Zyxel P-871M modem Model P-871M View product
Performance2 differ
Upstream data rateDiffers	30 Mbit/s	40 Mbit/s
Downstream data rateDiffers	38 Mbit/s	80 Mbit/s
Networking featuresKnown for one	Unknown — not stated by the source	Ethernet, Fast Ethernet, VDSL1/2
Supported protocolsKnown for one	Unknown — not stated by the source	1 x WAN (RJ45)
Data link protocolsKnown for one	TCP/IP	Unknown — not stated by the source
Maximum data transfer rateKnown for one	38 Mbit/s	Unknown — not stated by the source
ModulationKnown for one	256-QAM, 64-QAM, QPSK	Unknown — not stated by the source
Featuresidentical
Flow control supportKnown for one	Unknown — not stated by the source	Yes
InternalKnown for one	Unknown — not stated by the source	No
LED indicatorsKnown for one	Unknown — not stated by the source	Yes
Connectivity LEDsKnown for one	Unknown — not stated by the source	Yes
BandwidthKnown for one	0.006 GHz	Unknown — not stated by the source
Frequency rangeKnown for one	0.005 - 0.042 GHz	Unknown — not stated by the source
Ports & interfacesidentical
DC-in jack	Yes	Yes
Ethernet LAN (RJ-45) ports	1	1
Poweridentical
USB poweredKnown for one	Unknown — not stated by the source	No
Power requirementsKnown for one	(105 - 125)VAC, 60Hz/(100 - 240)VAC, (50 - 60)Hz	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	Federal Communications Commission (FCC)
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), 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 conditions2 differ
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Operating relative humidity (H-H)Differs	0 - 95%	20 - 85%
Storage temperature (T-T)Differs	-30 - 80 °C	-20 - 60 °C
Non-operating relative humidity (non-condensing)Known for one	Unknown — not stated by the source	20 - 90%
Weight & dimensions3 differ
DepthDiffers	58.4 mm	132 mm
HeightDiffers	152.4 mm	40 mm
WeightKnown for one	Unknown — not stated by the source	307 g
WidthDiffers	157.5 mm	189 mm
Modemidentical
InterfaceKnown for one	USB	Unknown — not stated by the source
System requirementsidentical
Mac compatibilityKnown for one	Yes	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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