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Product comparison · 2 modems

D-Link DSL-520B modem vs Motorola SB6121 modem

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  • 8specifications compared
  • 5differ
  • 3identical
  • 21known for one product only

Key differences

The Motorola SB6121 modem has 127.572 Mbit/s more upstream data rate than the D-Link DSL-520B modem (131.072 Mbit/s vs 3.5 Mbit/s). The Motorola SB6121 modem has 198.464 Mbit/s more downstream data rate than the D-Link DSL-520B modem (222.464 Mbit/s vs 24 Mbit/s). Power supply type: 100-240 VAC, 50/60 Hz on the D-Link DSL-520B modem, 9W on the Motorola SB6121 modem. Operating relative humidity (H-H): -5 - 95% on the D-Link DSL-520B modem, 5 - 95% on the Motorola SB6121 modem. Storage temperature (T-T): -20 - 70 °C on the D-Link DSL-520B modem, -30 - 70 °C on the Motorola SB6121 modem.

  • Upstream data rate
    • 3.5 Mbit/s
    • 131.072 Mbit/s
  • Downstream data rate
    • 24 Mbit/s
    • 222.464 Mbit/s
  • Power supply type
    • 100-240 VAC, 50/60 Hz
    • 9W
  • Operating relative humidity (H-H)
    • -5 - 95%
    • 5 - 95%
  • Storage temperature (T-T)
    • -20 - 70 °C
    • -30 - 70 °C

Side by side

Differences highlightedShow differences only
29 specifications
A

D-Link

DSL-520B modem

Model DSL-520B

View product
B

Motorola

SB6121 modem

Model SB6121

View product
Performance2 differ
Data link protocolsKnown for oneTCP/IP
Upstream data rateDiffers3.5 Mbit/s131.072 Mbit/s
Downstream data rateDiffers24 Mbit/s222.464 Mbit/s
Maximum data transfer rateKnown for one222.464 Mbit/s
ModulationKnown for one256-QAM, 64-QAM, QPSK
MAC address filteringKnown for oneYes
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
Featuresidentical
BandwidthKnown for one0.1 GHz
Frequency rangeKnown for one0.108 - 1 GHz
InternalKnown for oneNo
LED indicatorsKnown for oneYes
Plug and PlayKnown for oneYes
Power LEDKnown for oneYes
Ports & interfacesidentical
Connector(s)Known for oneRJ-11, RJ-45
Modem (RJ-11) portsKnown for one1
Power1 differ
Power requirementsKnown for one(105 - 125)VAC, 60Hz/(100 - 240)VAC, (50 - 60)Hz
Power supply typeDiffers100-240 VAC, 50/60 Hz9W
System requirementsidentical
Mac compatibilityKnown for oneYes
Operational conditions2 differ
Operating relative humidity (H-H)Differs-5 - 95%5 - 95%
Storage temperature (T-T)Differs-20 - 70 °C-30 - 70 °C
Weight & dimensionsidentical
DepthKnown for one133 mm
HeightKnown for one42 mm
WidthKnown for one133 mm
Packaging contentidentical
Cables includedKnown for oneLAN (RJ-45)
Modemidentical
InterfaceKnown for oneRJ-11, RJ-45
Certificatesidentical
Compliance industry standardsKnown for oneADSL: 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

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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