Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem
- Price: $79.99
- Free Shipping (USA)
- In Stock
- B&H # MOSB6121
- Mfr# 575319-019-00
Product Highlights
- DOCSIS / EuroDOCSIS 3.0 Certified
- Compatible with DOCSIS 1.0 / 1.1 / 2.0
- GigE Port w/ Auto Negotiate + Auto MDIX
- Four Upstream / Downstream Channels Each
- 10 / 100 / 1000 Base-T Ethernet Port
- Internal Low Pass Filter
- AES Traffic Encryption
- Supports IPv4 and IPv6
- User-Friendly Online Diagnostics
- Windows, Macintosh, and UNIX Compatible
The SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem from Motorola is an easy-to-use option for home-businesses or large businesses alike, that provides high-bandwidth transfer rates for large multimedia files. It offers channel bonding of up to four downstream and four upstream channels, with data rates well above 100 Mb/s in both directions. While it is built for DOCSIS 3.0, it is of course backward compatible with 1.0, 1.1, and 2.0 standards.
With a 10 / 100 / 1000 Base-T Ethernet (RJ-45) port, and easy-to-read LED status indicators, the SB6121 is convenient to install with older technology, and its operational status is visible at a glance. For high-end residential users, workers with a home office, or even medium to large businesses, the SB6121 from Motorola is an excellent option that offers great performance and simplicity in a variety of applications.
- DOCSIS 3.0
- The SB6121 enables channel bonding of up to four downstream channels and four upstream channels, which allows an operator to offer their customers advanced multimedia services with data rates of well over 100 Mb/s in both directions
- Economic and Flexible
- The modem provides operators with an economic option for providing Ultra-Broadband services, with four times the current maximum user data throughput, approximating 160 Mbps in DOCSIS mode and 195 Mbps in EuroDOCSIS mode, without the need for hybrid fiber coax (HFC) plant upgrade
- Enhanced Network Management
- With the ability to provision and manage IP multicast, GigE (RJ-45) data port with Auto Negotiate and Auto MDIX, and user-friendly online diagnostics--the SB6121 has got the features to give you full-control over network management and maintenance
- Backward Compatibility
- Backward compatible to DOCSIS 1.0, 1.1 and 2.0, the SB6121 also supports both IPv4 and IPv6, Advanced Encryption Services, and all other DOCSIS 3.0 standards
- Low Pass Filter
- Internal Low Pass Filter to eliminate MoCA signal overload
- Power Saving Energy Conservation Switch
- This allows you to disable the modem when it is not in use (optional)
- DOCSIS 3.0 Certified
- Channel bonding of up to four downstream channels and four upstream channels increasing data rates of well over 100 Mbps in each direction. It supports IPv4 and IPv6 to expand network addressing capabilities, and also supports AE traffic encryption for enhanced security and protection
| Operation Details | |
|---|---|
| Modulation |
Downstream: 64 or 256 QA Upstream: QPSK and 8, 16, 32, 64, 128 QAM |
| Bandwidth |
100 MHz (edge to edge) DOCSIS: ≤ 24 MHz EuroDOCSIS: ≤ 32 MHz |
| Data Transfer Rate |
Downstream: DOCSIS: 171.537 Mb/s (4 channels) / 42.884 (single channel) at 256 QAM at 5.36 Msym/s EuroDOCSIS: 222.464 Mb/s (4 channels) / 55.616 (single channel) at 256 QAM at 6.952 Msym/s Upstream: DOCSIS: 131.072 Mb/s (4 channels) / 32.768 Mb/s (single channel): at 128 QAM at 6.4 MHz EuroDOCSIS: 131.072 Mb/s (4 channels) / 32.768 Mb/s (single channel): at 128 QAM at 6.4 MHz |
| Symbol Rate |
Downstream: 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 Upstream: 160, 320, 640, 1280, 2560, 5120 ksym/s |
| Level Range |
Downstream: -15 to 15 dBmV Upstream: Level range per channel (Multiple Transmit Channel mode disabled, or only Multiple Transmit Channel mode enabled with one channel in the TCS) DOCSIS/EuroDOCSIS: TDMA: Pmin to +57 dBmV (32 QAM, 64 QAM) Pmin to +58 dBmV (8 QAM, 16 QAM) Pmin to +61 dBmV (QPSK) S-CDMA: Pmin to +56 dBmV (all modulations), where: Pmin = +17 dBmV, 1280 kHz modulation rate Pmin = +20 dBmV, 2560 kHz modulation rate Pmin = +23 dBmV, 5120 kHz modulation rate Level range per channel (two channels in the TCS) TDMA: Pmin to +54 dBmV (32 QAM, 64 QAM) Pmin to +55 dBmV (8 QAM, 16 QAM) Pmin to +58 dBmV (QPSK) S-CDMA: Pmin to +53 dBmV (all modulations), where: Pmin = +17 dBmV, 1280 kHz modulation rate Pmin = +20 dBmV, 2560 kHz modulation rate Pmin = +23 dBmV, 5120 kHz modulation rate Level range per channel (three or four channels in the TCS) TDMA: Pmin to +51 dBmV (32 QAM, 64 QAM) Pmin to +52 dBmV (8 QAM, 16 QAM) Pmin to +55 dBmV (QPSK) S-CDMA: Pmin to +53 dBmV (all modulations), where: Pmin = +17 dBmV, 1280 kHz modulation rate Pmin = +20 dBmV, 2560 kHz modulation rate Pmin = +23 dBmV, 5120 kHz modulation rate |
| RF Specifications | Bonded Channel RF Level Tolerance: 10dBmV |
| Input Impedance | 75 Ohms (nominal) |
| Output Impedance | 75 Ohms (nominal) |
| Frequency Range |
Downstream: DOCSIS and EuroDOCSIS 108 to 1002 MHz (edge to edge), Optional 91 to 1002 MHz (edge to edge) Upstream: DOCSIS 5-42 MHz (edge to edge), EuroDOCSIS and optional DOCSIS 5 to 65 MHz (edge to edge) |
| Frequency Measurement |
Frequency Plan: EuroDOCSIS Annex A DOCSIS Annex B J-DOCSIS Annex B, modified for Japan Frequencies |
| Security | Security: DOCSIS 3.0 Security (BPI+, EAE, SSD) |
| Network Management | SNMP v2 and v3 |
| IP Interface | Supports IP addressing using IPv4 and / or IPv6 (dual stack) |
| Compatibility |
PC: 90496, Pentium, or later; Windows Vista, 2000, XP or 7 or Linux with Ethernet connection (although not specifically supported, older versions of Windows 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 |
| General Attributes | |
|---|---|
| Cable Connection | 75 Ohms F-connector |
| Network Interface | 10 / 100 / 1000 Base-T Ethernet (RJ-45) |
| Data Link Protocol | TCP / IP |
| Power Supply |
9W nominal 105 - 125VAC, 60 Hz 100 - 240VAC, 50 - 60 Hz |
| Compliance | RoHS compliant, ENERGY STAR V2 , COC V3, Compliant per the "Code of Conduct on Energy Consumption of Broadband Equipment", CMM, MEPS |
| Environmental Requirements | Operating Temperature: 32 to 104° F (0 to 40° C) Storage Temperature: -22 to 158° F (-30 to 70° C) Operating Humidity: 5 to 95% (non-condensing) |
| Dimensions (H x W x D) | 5.2 x 5.2 x 1.7" (13.3 x 13.3 x 4.2 cm) |
REVIEW SNAPSHOT®
by PowerReviews(based on 43 reviews)
Ratings Distribution
97%
of respondents would recommend this to a friend.
Pros
- Easy to set up (38)
- Fast (28)
- Highly compatible (22)
- Small (18)
- Secure (12)
Cons
Best Uses
- Home (29)
- Secure networks (7)
- Small office (7)
- Heavy downloading (5)
- Surfing the web (5)
- Reviewer Profile:
- High bandwidth user (28), Quality oriented (7), Low bandwidth user (6)
- Primary use:
- Personal (38), Business (3)
- Computer Platform:
- PC (19), Mac (16)
Most Liked Positive Review
Very good modem
Pair this up with my Western Digital myNet900 router and it is blazing fast. Running at full speed @ 1gb/s between my modem and my router giving no lag whatsoever. I've also notice ...Read complete review
Pair this up with my Western Digital myNet900 router and it is blazing fast. Running at full speed @ 1gb/s between my modem and my router giving no lag whatsoever. I've also notice my download speed almost doubled. Before I was getting 32mb/s down and 5mb/s up and now I'm getting 57mb/s down and 15mb/s up. I'm very happy with it and I'm also happy that I am not being charge monthly for their cheap, no good, look like a plastic toy box modem. This modem is a beast compare to the one Comcast give to their customer.
VS
Most Liked Negative Review
Firmware Version Outdated
We have Rogers here in London,Ontario.Tek Savvy (ISP using Rogers infrastructure)supports this modem but will not update the firmware if the firmware version is outdated. I can't speak to it's performance or ...Read complete review
We have Rogers here in London,Ontario.Tek Savvy (ISP using Rogers infrastructure)supports this modem but will not update the firmware if the firmware version is outdated. I can't speak to it's performance or durability for obvious reasons.
REVIEWS
Reviewed by 43 customers
Sort by
Displaying reviews 1-20
Previous | Next »
Pros
- Easy To Set Up
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
I use this modem in my home. It connected easily and I haven't had any problems. It has replaced a rented modem from Comcast.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Gigabit Port 101001000
- Highly Compatible
- No Lag
- Secure
- Small
Cons
- none
Best Uses
- Gaming
- Home
- Secure Networks
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
Pair this up with my Western Digital myNet900 router and it is blazing fast. Running at full speed @ 1gb/s between my modem and my router giving no lag whatsoever. I've also notice my download speed almost doubled. Before I was getting 32mb/s down and 5mb/s up and now I'm getting 57mb/s down and 15mb/s up. I'm very happy with it and I'm also happy that I am not being charge monthly for their cheap, no good, look like a plastic toy box modem. This modem is a beast compare to the one Comcast give to their customer.
- Primary use:
- Personal
- Computer Platform:
- PC
- Recommended:
- Western Digital myNet900, Netgear Giga Switch
Pros
- Fast
- Highly Compatible
Cons
Best Uses
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
connected to comcast internet. no issues or problems to date (about two weeks active)
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Small
Cons
Best Uses
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
So far so good, had it for a few weeks and it has provided solid performance. Working well with Comcast Blast internet.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Highly Compatible
Cons
Best Uses
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
I know nothing about modems. But I guess this is a dock 3 and fairly good modem but not the best. I had to get one because TimeWarner Cable is a scam. Anyway at least I won't be paying to use their junk. This is a good solution and was easy to set up and has been working great for a week or so. Works well with my Mac setup.
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
Best Uses
- Home
- Small Office
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
This modem is easily set up just simply by following the instruction. I just used for about three weeks and did not see any problems yet.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Highly Compatible
Cons
- Bulky
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
So far, it is better than the original cable modem supplied by TWC. I have not experienced any poor connection between my devices and the modem. The only problem I have is that the comparison table on the back of the box. Does it mean this model is not good or even not for wireless and WiFi functions?
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Highly Compatible
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
One call to the cable company and I had this cable modem up and running within 15 minutes. And I have noticed faster speeds using this modem compared to the cable company rental modem.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
Took me a while to get it to work even with the help of the cable guy from WAVE BROADBAND. But once it started (two hours later), I never had an internet drop ever since.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
Cons
Best Uses
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
We have Rogers here in London,Ontario.Tek Savvy (ISP using Rogers infrastructure)supports this modem but will not update the firmware if the firmware version is outdated. I can't speak to it's performance or durability for obvious reasons.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
First the price was good,very good reviews and the brand reputations.No complaints so far.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
My old SB 5120 started to disconnect randomly, this one has been rock solid since I got it two weeks ago.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Small
Cons
- Not Sure Of Security
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
I use this hard disk for docs backup and it is convenient to install and configure. Also the B&H price is great with free shipping. However, it may take some efforts to customize the backups you need in an automated way.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Highly Compatible
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
bought it because my cable company started to charge monthly modem fee. works well, don't see any speed change.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
It is a plug and play
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
- none
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
Last month, TWC notified customers they would begin billing for leased cable modems, or customers had an option to buy their own. At $4.00/month, I opted for the latter. The Motorola SB6121 DOCSIS 3.0 CPE Cable Modem was among the choices. B&H provided the lowest price and shipped in two days. Easy set-up and I was in business within 15 minutes. I will definitely return to B&H in the future!
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
Best Uses
- Home
- Secure Networks
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
The only surprise was having tot contact my provider to regisiter on system. Maybe instructions could be a little clearer about how to get it running. Hook up is pretty straight forward.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Small
Cons
- Slow
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
sometimes seems slower than other modem....not so important but ok
- Primary use:
- Business
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Small
Cons
Best Uses
- Home
- Small Office
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
I bought this modem to replace the device that TWC installed when they recently notified me they would be adding a service fee. Installation took just a few minutes and provisioning took less than 10 minutes once I got the right agent on the phone (they have improved this process). A speed check showed a dramatic and immediate increase in download speed. Upload speed was only slightly better, but more consistent with the new modem.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Small
- Solid Construction
Cons
- none
Best Uses
- Home
- Small Office
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
Really a stellar device -- I'd recommend it to anyone looking to get their own Cable Modem. NOTE: If you're looking to use it with Comcast, search the web about how to make that work. The tech that came out to do the install couldn't make it work, but the caveat is to call customer support after the install and give them the 'CUSTOMER S/N' from the modem box instead of the device S/N, and then give them the MAC address as usual. That'll get you online.
- Primary use:
- Personal
- Computer Platform:
- Mac
REVIEW SNAPSHOT®
by PowerReviews(based on 43 reviews)
Ratings Distribution
97%
of respondents would recommend this to a friend.
Pros
- Easy to set up (38)
- Fast (28)
- Highly compatible (22)
- Small (18)
- Secure (12)
Cons
Best Uses
- Home (29)
- Secure networks (7)
- Small office (7)
- Heavy downloading (5)
- Surfing the web (5)
- Reviewer Profile:
- High bandwidth user (28), Quality oriented (7), Low bandwidth user (6)
- Primary use:
- Personal (38), Business (3)
- Computer Platform:
- PC (19), Mac (16)
Most Liked Positive Review
Very good modem
Pair this up with my Western Digital myNet900 router and it is blazing fast. Running at full speed @ 1gb/s between my modem and my router giving no lag whatsoever. I've also notice ...Read complete review
Pair this up with my Western Digital myNet900 router and it is blazing fast. Running at full speed @ 1gb/s between my modem and my router giving no lag whatsoever. I've also notice my download speed almost doubled. Before I was getting 32mb/s down and 5mb/s up and now I'm getting 57mb/s down and 15mb/s up. I'm very happy with it and I'm also happy that I am not being charge monthly for their cheap, no good, look like a plastic toy box modem. This modem is a beast compare to the one Comcast give to their customer.
VS
Most Liked Negative Review
Firmware Version Outdated
We have Rogers here in London,Ontario.Tek Savvy (ISP using Rogers infrastructure)supports this modem but will not update the firmware if the firmware version is outdated. I can't speak to it's performance or ...Read complete review
We have Rogers here in London,Ontario.Tek Savvy (ISP using Rogers infrastructure)supports this modem but will not update the firmware if the firmware version is outdated. I can't speak to it's performance or durability for obvious reasons.
REVIEWS
Reviewed by 43 customers
Sort by
Displaying reviews 1-20
Previous | Next »
Pros
- Easy To Set Up
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
I use this modem in my home. It connected easily and I haven't had any problems. It has replaced a rented modem from Comcast.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Gigabit Port 101001000
- Highly Compatible
- No Lag
- Secure
- Small
Cons
- none
Best Uses
- Gaming
- Home
- Secure Networks
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
Pair this up with my Western Digital myNet900 router and it is blazing fast. Running at full speed @ 1gb/s between my modem and my router giving no lag whatsoever. I've also notice my download speed almost doubled. Before I was getting 32mb/s down and 5mb/s up and now I'm getting 57mb/s down and 15mb/s up. I'm very happy with it and I'm also happy that I am not being charge monthly for their cheap, no good, look like a plastic toy box modem. This modem is a beast compare to the one Comcast give to their customer.
- Primary use:
- Personal
- Computer Platform:
- PC
- Recommended:
- Western Digital myNet900, Netgear Giga Switch
Pros
- Fast
- Highly Compatible
Cons
Best Uses
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
connected to comcast internet. no issues or problems to date (about two weeks active)
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Small
Cons
Best Uses
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
So far so good, had it for a few weeks and it has provided solid performance. Working well with Comcast Blast internet.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Highly Compatible
Cons
Best Uses
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
I know nothing about modems. But I guess this is a dock 3 and fairly good modem but not the best. I had to get one because TimeWarner Cable is a scam. Anyway at least I won't be paying to use their junk. This is a good solution and was easy to set up and has been working great for a week or so. Works well with my Mac setup.
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
Best Uses
- Home
- Small Office
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
This modem is easily set up just simply by following the instruction. I just used for about three weeks and did not see any problems yet.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Highly Compatible
Cons
- Bulky
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
So far, it is better than the original cable modem supplied by TWC. I have not experienced any poor connection between my devices and the modem. The only problem I have is that the comparison table on the back of the box. Does it mean this model is not good or even not for wireless and WiFi functions?
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Highly Compatible
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
One call to the cable company and I had this cable modem up and running within 15 minutes. And I have noticed faster speeds using this modem compared to the cable company rental modem.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
Took me a while to get it to work even with the help of the cable guy from WAVE BROADBAND. But once it started (two hours later), I never had an internet drop ever since.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
Cons
Best Uses
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
We have Rogers here in London,Ontario.Tek Savvy (ISP using Rogers infrastructure)supports this modem but will not update the firmware if the firmware version is outdated. I can't speak to it's performance or durability for obvious reasons.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
First the price was good,very good reviews and the brand reputations.No complaints so far.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
My old SB 5120 started to disconnect randomly, this one has been rock solid since I got it two weeks ago.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Small
Cons
- Not Sure Of Security
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
I use this hard disk for docs backup and it is convenient to install and configure. Also the B&H price is great with free shipping. However, it may take some efforts to customize the backups you need in an automated way.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Highly Compatible
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
bought it because my cable company started to charge monthly modem fee. works well, don't see any speed change.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
It is a plug and play
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
- none
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
Last month, TWC notified customers they would begin billing for leased cable modems, or customers had an option to buy their own. At $4.00/month, I opted for the latter. The Motorola SB6121 DOCSIS 3.0 CPE Cable Modem was among the choices. B&H provided the lowest price and shipped in two days. Easy set-up and I was in business within 15 minutes. I will definitely return to B&H in the future!
- Computer Platform:
- PC
Pros
- Easy To Set Up
- Fast
- Highly Compatible
- Secure
- Small
Cons
Best Uses
- Home
- Secure Networks
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
The only surprise was having tot contact my provider to regisiter on system. Maybe instructions could be a little clearer about how to get it running. Hook up is pretty straight forward.
- Primary use:
- Personal
- Computer Platform:
- PC
Pros
- Small
Cons
- Slow
Best Uses
- Home
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
sometimes seems slower than other modem....not so important but ok
- Primary use:
- Business
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Small
Cons
Best Uses
- Home
- Small Office
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
I bought this modem to replace the device that TWC installed when they recently notified me they would be adding a service fee. Installation took just a few minutes and provisioning took less than 10 minutes once I got the right agent on the phone (they have improved this process). A speed check showed a dramatic and immediate increase in download speed. Upload speed was only slightly better, but more consistent with the new modem.
- Primary use:
- Personal
- Computer Platform:
- Mac
Pros
- Easy To Set Up
- Fast
- Small
- Solid Construction
Cons
- none
Best Uses
- Home
- Small Office
Comments about Motorola SURFboard SB6121 DOCSIS 3.0 CPE Cable Modem:
Really a stellar device -- I'd recommend it to anyone looking to get their own Cable Modem. NOTE: If you're looking to use it with Comcast, search the web about how to make that work. The tech that came out to do the install couldn't make it work, but the caveat is to call customer support after the install and give them the 'CUSTOMER S/N' from the modem box instead of the device S/N, and then give them the MAC address as usual. That'll get you online.
- Primary use:
- Personal
- Computer Platform:
- Mac
Cables
Show more >
- Price: $4.09
Surge Protection
Show more >
- Price: $5.99
WHY SHOP AT B&H
Make your online shopping trip personal with our online Live Chat representatives. You can easily reach an in-house expert while browsing our site for your shopping needs. We have the most highly-trained staff in the industry who are pros in their fields, and their professional expertise will help you get the most from your purchase.
Place your domestic order with us for shipment via any UPS, FedEx Economy, or FedEx Priority shipping methods by 4 PM ET Monday through Thursday or 11 AM ET Friday and your order will be shipped that day. Visit our Shipping Delivery Times page for further details. Delivery times are subject to payment verification.
We appreciate your purchase from us, and we understand that sometimes the products you buy don't turn out to be the right choice for you. We guarantee your peace of mind with our 30-day return policy. With no standard restocking fee and few restrictions, you'll enjoy a return process as easy as shopping with us. Please visit our Return Policy page for further details.
We've made iPhone and Android mobile apps available for your service and shopping convenience. Use filtered search to find and purchase almost any item we sell and ship worldwide. Download product manuals and guides for many popular items. See high-resolution product images in close-up detail. Manage wishlists and view order history. Visit our Mobile Apps page to download.
See sample Newsletter
Help
Company Information
B&H Resources
