Ultra-fast DOCSIS 3.1 performance modem allows you to Stream, game, conference and more with confidence. DOCSIS 3.1 supports speeds up to 10x faster with higher efficiency. Backwards compatible with 32x8 DOCSIS 3.0 so you can future proof your network.
Q: What is the warranty period for the modem?
A: The manufacturer's warranty for parts on the B12 Motorola Cable Modem is 2 years.
Q: Does the modem support Gigabit Ethernet?
A: This modem does offer Gigabit Ethernet speed.
Q: What is the maximum downstream data speed of the modem?
A: The maximum downstream data speed of this modem is 2.5 megabits per second.
Q: What are the dimensions of the modem?
A: The B12 Motorola Cable Modem has a product width of 4 inches, a length of 5.7 inches, and a height of 5.2 inches.
Q: Can the modem prioritize traffic using QoS?
A: This modem offers Quality of Service (QoS) traffic prioritization.
Q: How many LAN ports does the modem have?
A: This modem has one LAN port.
Q: Does this modem work with my eero mess system?
A: Hi PamG, Thank you for your inquiry. To confirm compatibility details with your eero mesh system, we recommend reaching out to our dedicated support team at [email protected]. They’ll be happy to assist and provide the most accurate information for your setup. -Mitch
Q: Is this modem compatible with glofiber?
A: No, This is a cable modem not a fiber modem.

Ultra-fast DOCSIS 3.1 performance modem allows you to Stream, game, conference and more with confidence. DOCSIS 3.1 supports speeds up to 10x faster with higher efficiency. Backwards compatible with 32x8 DOCSIS 3.0 so you can future proof your network.

The CM1000 Ultra-High Speed Cable Modem, with speeds up to 1Gbps and DOCSIS 3.1 is 10X faster than DOCSIS 3.0 devices. It's backward compatible with DOCSIS 3.0 and ready for future service plan upgrades for XFINITY from Comcast, Cox, and Spectrum. A Gigabit Ethernet port provides faster access and downloads.

The ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem is capable of delivering true Gigabit speeds. It's approved for use with Cox, Spectrum, Xfinity and others supporting cable internet speed plans up to 1 Gbps. Upgrading your home network starts with your modem.

Upgrade to faster speeds with the revolutionary DOCSIS 3.1 mid/high-split cable modem from NETGEAR. The Nighthawk CM2500 cable modem is specifically engineered to handle today’s faster DOCSIS 3.1 cable internet speeds that can only be accessed with mid/high-split technology, such as Xfinity’s 900Mbps Internet download speeds and 100Mbps upload speeds. Your entire family can enjoy faster download speeds up to 2Gbps (with link aggregation) and unprecedented upload speeds up to 1Gbps for lag-free gaming, crisp video conferencing, smoother music and video streaming, and instant app downloads. Connect for multi-gig speeds up to 2Gbps by connecting the two 1Gig ports to a router that supports Internet with link aggregation. And to push your Nighthawk’s performance even further, you can simply pair the CM2500 with a NETGEAR WiFi 6E or WiFi7 router or with our amazing Orbi system. The Nighthawk CM2500 works seamlessly with every major U.S. cable service provider.
| Pros for Motorola - B12 32 x 8 DOCSIS 3.1 Cable Modem - Black | |||
|---|---|---|---|
| There were no pros for this product— | Speed, Ease of use, Setup, Performance, Compatibility | Speed, Overall Performance, Ease of use, Setup, Connectivity | Overall Performance, Speed, Connectivity |
| Cons for Motorola - B12 32 x 8 DOCSIS 3.1 Cable Modem - Black | |||
| There were no cons for this product— | Lag, Heat, Ethernet Ports, Signal Strength | Heat, Lag, Ethernet Port | There were no cons for this product— |
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Works well with spectrum cable. Easy to setup no frills simple modem.
This review is from Motorola - B12 32 x 8 DOCSIS 3.1 Cable Modem - Black
Posted by ScottH
Very easy to install, it took about 15minutes. It looks great setting on the shelf and has remained connected and strong for about 2weeks now.
This review is from Motorola - B12 32 x 8 DOCSIS 3.1 Cable Modem - Black
Posted by
The Motorola B12 modem was easy to setup through my xfinity app. I struggled with the Motorola app. It kept saying this model is not supported in the app. Strange because in the instructions it says you can use the app. Fortunately, I connected through Xfinity. I have 1.2gb service and this modem is capable of 2.5gb service. Make sure you have at least 1gb in order to use this modem. Less service than 1gb will cause slower response. This information was provided by Motorola. The modem has been flawless. I find there have been 'no signal drops' in the week I've owned the modem. There is zero lag. The modem immediately connected with my mesh routers and together there has been no issues. No conflicts. This modem supports all the current standards with DOCSIS 3.1 Connectivity is great with all my devices, phone, tv, and computer. The modem is small in size and doesn't have the traditional bank of upload, download, power, connectivity lights of other modems. It has 1 singular dot of light when on. During setup there is a set of blinking sequences of that one light that mean different things. Personally, I like this small footprint. This modem will save you a lot of money versus renting from your cable provider. It is insane to me why anyone would rent their modem from the cable provider in this day and age. The app needs work, but in reality if you have one of the big cable companies you can setup the new modem through them. Motorola needs to do a better job on the app. It is far from a deal breaker though. Frankly, it is just an annoyance. I think Motorola has an excellent modem here. The modem is backed by a one year warranty.
This review is from Motorola - B12 32 x 8 DOCSIS 3.1 Cable Modem - Black
Posted by AFASOX