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Item#: N82E16825122015

MOTOROLA SB6121 SURFboard Cable Modem Up To 172 Mbps Down and 131 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

  • Gigabit Ethernet connectivity
  • DOCSIS 3.0-certified (EuroDOCSIS 3.0-based)
  • Channel bonding of up to 4 downstream and 4 upstream channels
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SB6121

SB6121 SURFboard Cable Modem RJ-45

Building upon the success of the SB6120, Motorola's SURFboard SB6121 delivers your complete personal media experience, at lightning-fast broadband speed. It harnesses the power of DOCSIS 3.0 technology to bond up to four downstream channels and four upstream channels - providing you advanced multimedia services with data rates of more than 100Mbps in each direction. That makes gaming, shopping, downloading, working, high-quality voice and video conferencing, and peer-to-peer networking applications far more efficient than ever before.

 

Features

SB6121 Easy to Set Up and Use
  • Plug-and-play installation
  • Front panel LEDs indicate status and simplify troubleshooting
  • Multi-language user guides
  • Supports standard internet software
  • User-friendly online diagnostics

Efficient
  • Stylish and space-saving enclosure
  • Offers innovative, high-bandwidth data and multimedia services to customers
  • Backward-compatible to DOCSIS / EuroDOCSIS 1.x and 2.0

Advanced Services Ready
  • DOCSIS 3.0-certified (EuroDOCSIS 3.0-based)
  • Channel bonding of up to four downstream and four upstream channels
  • 1GHz capable tuners
  • Supports IPv4 and IPv6 to expand network addressing capabilities
     
Versatile and Convenient
  • Compatible with Windows, Macintosh, and UNIX computers.
  • Gigabit Ethernet (RJ-45) data port enable flexible, high-speed connectivity with Auto Negotiate and Auto MDIX

Reliable and Secure
  • Enhanced security: supports Advanced Encryption Services (AES) traffic encryption
  • Remotely configurable and monitorable using SNMP and TFTP
 
SB6121

As part of Motorola's DOCSIS 3.0 Ultra-Broadband family of products, the SB6121 includes an enhanced tuner that supports up to a 1GHz downstream input, which allows operators to increase the frequency spectrum for deployment of new high-value service - such as bandwidth on-demand, commercial services, interactive gaming, and IPTV. The SB6121 features a 10/100/1000 Base-T Ethernet (RJ-45) port, as well as intuitive, easy-to-read front-panel operational status LEDs.

What Is DOCSIS 3.0?

With the DOCSIS 3.0 specification, cable Internet providers can take advantage of the extra capacity provided by channel-bonding technology in order to offer ultra-fast broadband services. Channel bonding allows parallel data pipes to act as a single broadband conduit. With each channel capable of providing around 40Mbps of data, the Motorola SURFboard SB6121's four downstream channels can provide a theoretical maximum of 160Mbps of throughput.

Currently, cable providers max out at around 50Mbps of downstream data throughput, but DOCSIS 3.0 will enable cable Internet providers to continue to improve the speed of their networks.

System Requirements
The SB6121 is compatible with the following operating systems:
  • Windows 7
  • Windows Vista, Service Pack 1 or later
  • Windows XP, Service Pack 2 or later
  • Mac 10.4 or later (Ethernet connection only)
  • UNIX (Ethernet connection only)
  • Linux (Ethernet connection only)

What's in the Box

Motorola SURFboard SB6121, Ethernet cable, Installation sheet
 
 

 


Learn more about the Motorola SB6121

Model

Brand
MOTOROLA
Model
SB6121

Spec

Type
Cable Modem
Interface
1 x RJ-45, Gigabit Ethernet
Cable Interface
75ohm F-connector
Standards
DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0
Max Transmission Rate
Up To 172 Mbps Down and 131 Mbps Up

Features

Features
Data Protocol: TCP/IP

Power: 9W (nominal)

Input Power: 105 to 125 VAC, 60 Hz

Downstream:
-Modulation: 64 or 256 QAM

-Capture Bandwidth: 100 MHz (edge to edge)

-Maximum Theoretical Data Rate:
DOCSIS: 171.537 Mbps (4 channels) / 42.884 (single channel)@ 256 QAM at 5.36 Msym/s
EuroDOCSIS: 222.464 Mbps (4 channels) / 55.616 (single channel)@ 256 QAM at 6.952 Msym/s.

-Bandwidth:
DOCSIS: = 24 MHz
EuroDOCSIS: = 32 MHz.

-Symbol Rate:
DOCSIS: 64 QAM 5.057 Msym/s; 256 QAM 5.361 Msym/s

EuroDOCSIS: 64 QAM 6.952 Msym/s; 256 QAM 6.952 Msym/s.

-Operating Level Range: –15 to 15 dBmV

-Security: DOCSIS 3.0 Security (BPI+, EAE, SSD)

-Network Management: SNMP v2 & v3

-Provisioning Supports: IP addressing using IPv4 and/or IPv6 (dual stack).

Upstream:
-Modulation: QPSK and 8, 16, 32, 64, 128 QAM

-Maximum Channel Rate
DOCSIS 131.072 Mbps (4 channels) / 32.768 Mbps (single channel): @ 128 QAM at 6.4 MHz
EuroDOCSIS 131.072 Mbps (4 channels) / 32.768 Mbps (single channel): @ 128 QAM at 6.4 MHz.

-Channel Width 200 kHz, 400 kHz, 800 kHz, 1.6 MHz, 3.2 MHz, 6.4 MHz

-Symbol Rates: 160, 320, 640, 1280, 2560, 5120 ksym/s

-Frequency Range: DOCSIS 5-42 MHz (edge to edge), EuroDOCSIS and optional DOCSIS 5 to 65 MHz (edge to edge)

-Compatibility:
Compatibility PC: 90496, Pentium, or later; Windows Vista, 2000, XP or 7 or Linux with Ethernet connection (older versions of Windows, although not specifically supported, will work with this cable modem).
Macintosh: Power PC or later; OS 9 or higher, Ethernet connection.
UNIX: Ethernet connection.
Home Networking: Ethernet router or wireless access point.

Packaging

Package Contents
Ethernet Cable
Power Supply
Software License & Regulatory Card
Product Guide (Install Sheet)

Manufacturer Warranty

Parts
1 Year Limited Warranty
Labor
1 Year Limited Warranty

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the Motorola SB6121

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  • Thomas Z.
  • 1/28/2015 6:45:12 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBest in Class

Pros: Best performing cable modem so far. No down time . No bugs. Reboots itself after power outage.

Cons: Non so far.

Other Thoughts: Lights are a little distracting and instructions not clear.

Did you find this review helpful? Yes No

  • Lester P.
  • 1/26/2015 7:40:40 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsMotorola modem

Pros: So far so good, the unit is working like a champ. It's handling everything I throw at it thru a linksys router, iPhone, laptop, tablet & decktop all at the same time.

Cons: None at the moment. It's doing all I want it to do.

Other Thoughts: If you don't have a really heavy demand on your system there's no doubt that this unit will work great for everyday use.

Did you find this review helpful? Yes No

  • Melody N.
  • 1/26/2015 3:55:41 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

5 out of 5 eggsGreat Modem for a Great Price

Pros: I've had this modem for about 3 years now, and I've enjoyed it a lot.

I haven't had any problems with it, and it's front-end light interface is easy to understand.

Cons: None so far. Going on year 4...

Other Thoughts: It's a great deal, and I'd highly recommend this to anyone looking for a cable modem.

1 out of 1 people found this review helpful. Did you? Yes No

  • William A.
  • 1/13/2015 4:22:02 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsSB6121 on TWC

Pros: Usual newegg ease of order and shipping.
I was scared it would be a problem to get it provisioned.
Called TWC and they knew exactly what to do. I had cabled and powered the unit in, called TWC and Norma just asked for it's MAC.

30 seconds later the Modem came up and I had internet (RJ 45). It was so smooth, I asked to speak to her supervisor (Eric). He was very interested in my experience, but (see con below).

Cons: He hadn't heard of Newegg. I told him to google it.

3 out of 3 people found this review helpful. Did you? Yes No

  • Anonymous
  • 1/13/2015 3:26:11 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsWorking Great After 2 Months

Pros: Easy Setup. Super fast connection. Works with Comcast

Cons: No Cons after 2 months!

Other Thoughts: Worth every penny. I recommend this product

1 out of 1 people found this review helpful. Did you? Yes No

  • Ken S.
  • 1/13/2015 10:19:30 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsIt has failed

Pros: Easy to set up

Cons: Worked ok initially.
Was iffy for some time. Inconsistent speeds, and drop outs
Now it has failed.
No joy.

Did you find this review helpful? Yes No

  • Joe R.
  • 1/7/2015 9:53:00 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

4 out of 5 eggsMOTOROLA SB6121 SURFboard Cable Modem

Pros: Have had this modem since June of 2014 and have had no problems that I can tell! Does streaming of video very well! We have Comcast internet and speed is Very Good.

Cons: None

Other Thoughts: Newegg has always been good for me!

Did you find this review helpful? Yes No

  • Devon R.
  • 1/5/2015 12:38:57 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat modem

Pros: This is the second Motorola modem I've owned in 15 years. I only replaced my old one because it didn't support the new speeds that Comcast upgraded me to. After getting it installed, it's been as rock solid as my old Motorola.

Cons: none

Did you find this review helpful? Yes No

  • Russell S.
  • 12/31/2014 8:47:06 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggspoor choice for noisy cable signal

Pros: When it works, it works fine. See below.

Cons: On my cable service, this modem worked well until it didn't. It disconnected, then got completely garbled, so much so that the tech assistance from Motorola's successor couldn't reset it. Looking at the web, you see this is fairly common with this modem, particularly on older or split cable systems where there is a lot of noise or also where the signal is too strong. So I've switched to a Zoom cable modem, whose specs show greater tolerance of a wider range of cable signals.

0 out of 2 people found this review helpful. Did you? Yes No

  • David S.
  • 12/31/2014 12:26:07 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsExcellent Modem

Pros: I use it with RR Extreme and always test 33-34 mbps at http://www.speedtest.net/.

Cons: None.

Did you find this review helpful? Yes No

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Item#: N82E16825122015
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