It is always difficult when it comes to decide and making final call choosing arris cm820a, hence we are here today so be sure to check the product reviews that will solve your confusion and save time. Reviews are a great way to find out if the product is right for you and whether it has any design flaws. If there are multiple bad reviews, you may want to look at other products. Negative reviews can tell you a lot about the product, including things you may not have thought to consider. They can tell you about any potential issues with the product. They can also tell you about issues with the manufacturer’s customer service. To help you out, we’ve collected reviews of what we think are the arris cm820a this year. Before you proceed with anything, read through our thoughts on the top arris cm820a, as well as an overview of what you need to know when considering your buying
This is the ultimate buyers guide arris cm820a.
The Best arris cm820a
![Arris CM820A (Comcast Version) DOCSIS 3.0 Cable Modem [Bulk Packaing] (Renewed)](https://m.media-amazon.com/images/I/41+p+cGtz4L._SL160_.jpg)
The Best arris cm820a
ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation)
$47.98
in stock
4 new from $47.98
8 used from $13.67
8 used from $13.67
Free shipping
Amazon.com
as of June 21, 2025 6:25 am
Features
- 8x4 bonded downstream/upstream channel for superior throughput
- Built in MoCA® immunity filter
- Two independent 96MHz wide RF tuners to receive downstream channels up to 1GHz
- Meet or exceed industry radiated immunity and surge requirements
- Please check with your Internet Service Provider for compatibility in your home or office
![Arris CM820A (Comcast Version) DOCSIS 3.0 Cable Modem [Bulk Packaing] (Renewed)](https://m.media-amazon.com/images/I/41+p+cGtz4L._SL500_.jpg)
Arris CM820A (Comcast Version) DOCSIS 3.0 Cable Modem [Bulk Packaing] (Renewed)
$29.97
in stock
Amazon.com
as of June 21, 2025 6:25 am
Features
- NOTE: Customer's must verify if their cable company will allow them to use this prior to purchasing even if they have the exact same model some of these modems are pre-programmed from their cable company so their cable company must update the firmware in order for it to work in some cases.
- Verify compatibility prior to purchasing. Ask internet provider to format item if it is not working through either a firmware update or the internet provider resetting the item to format to the customer's network connection.
- Backwards compatible with DOCSIS 1.0, 1.1, and 2.0 . CM820A DOCSIS 3.0 compliant. Comcast Compatible! (and more!)
- 8x4 downstream/upstream channel-bonding with superior throughput. Note: please contact the ISP to check the compatibility. Note: please contact the ISP to check the compatibility. 10/100/1000 Base-T Ethernet interface
- Best troubleshooting advice for this item: 1) Always verify if your cable company will allow you to use or own this item 2) Always do the online setup first, most of the time the firmware update will be automatic this way if it is needed. 3) Demand a supervisor if a CSR (customer service rep) will not assist in the setup 4) Customers can always contact us through messaging for assistance we respond to all messages with 24 hours 365 days a year.
Arris CM820A (Comcast Version) DOCSIS 3.0 Cable Modem [Bulk Packaing]
$59.74
in stock
7 used from $10.37
Amazon.com
as of June 21, 2025 6:25 am
Features
- NOTE: Customer's must verify if their cable company will allow them to use this prior to purchasing even if they have the exact same model some of these modems are pre-programmed from their cable company so their cable company must update the firmware in order for it to work in some cases.
- Verify compatibility prior to purchasing. Ask internet provider to format item if it is not working through either a firmware update or the internet provider resetting the item to format to the customer's network connection.
- Backwards compatible with DOCSIS 1.0, 1.1, and 2.0 . CM820A DOCSIS 3.0 compliant. Comcast Compatible! (and more!)
- 8x4 downstream/upstream channel-bonding with superior throughput. Note: please contact the ISP to check the compatibility. Note: please contact the ISP to check the compatibility. 10/100/1000 Base-T Ethernet interface
- Best troubleshooting advice for this item: 1) Always verify if your cable company will allow you to use or own this item 2) Always do the online setup first, most of the time the firmware update will be automatic this way if it is needed. 3) Demand a supervisor if a CSR (customer service rep) will not assist in the setup 4) Customers can always contact us through messaging for assistance we respond to all messages with 24 hours 365 days a year.
UL Listed Power Cord Replacement for Arris TM722G TM822A TM822G CM820A CT TM722G TG1672G TM602G TM502G TG1682 TG1682G Cable Modem Router 8Ft Polarized 2 Prong Power Cord AC Cable
$10.99
in stock
Amazon.com
as of June 21, 2025 6:25 am
Features
- High quality replacement polarized AC 2 prong power cord cable.
- Replace your overused, old, broken, damaged, or misplaced power cable or add extra distance / extension between devices for convenience
- 2 slot polarized power cords, 125V 10A 18AWG(approx.0.824mm2) extension ac cable connects from your equipment socket to a standard 2 pronged AC outlet.
- AC two prong polarized power cord replacement for Arris Touchstone DG950 DG950A TG2472 Xfinity TG1682 TG1682G Modem Router
- Package content: 1 x 2.5 meter ( 8 Foot ) length Extension AC two prong Power Cord Cable
Arris CM820A Cable Modem DOCSIS 3.0 (Renew).
$39.99
in stock
1 used from $39.99
Amazon.com
as of June 21, 2025 6:25 am
ARRIS CM820A Cable Modem DOCSIS 3.0 300 Mbps (Renewed)
$46.09
in stock
Amazon.com
as of June 21, 2025 6:25 am
ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem | Approved for Comcast Xfinity, Cox, Spectrum & More | 1 & 2.5 Gbps Ports | 2.5 Gbps Max Internet Speeds | 4 OFDM Channels | 2 Year Warranty
$199.00 in stock
5 new from $199.00
7 used from $190.07
7 used from $190.07
Free shipping
Amazon.com
as of June 21, 2025 6:25 am
Features
- Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
- Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider).
- Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a Wi-Fi router for networking.
- Compatibility: The SURFboard S33 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity (Blast!/Extreme Pro) and others. It's approved for cable internet speed plans up to 2.5-Gbps. Check your Internet Service Provider (ISP) website to confirm compatibility.
ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem | Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | Two 1 Gbps Ports | 1 Gbps Max Internet Speeds | 4 OFDM Channels | 2 Year Warranty,White
$164.99 in stock
10 new from $164.99
25 used from $62.45
25 used from $62.45
Amazon.com
as of June 21, 2025 6:25 am
Features
- A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem is designed to bring you superior connectivity, increase your network capability and provide faster streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing. .Telephone Port : None. HD Multi-Media Streaming : Yes.
- Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
- Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider).
- System requirements 1. High-speed Internet access account 2.Web browser access – Internet Explorer, Google Chrome, Firefox, or Safari 3. Compatible operating systems: 4. Windows 10 5. Windows 8 6. Windows 7 Service Pack 1 (SP1) Note: Although older versions of Microsoft Windows operating systems are no longer specifically supported, they should still function with your SB8200. a.Macintosh 10.4 or higher b. UNIX c. Linux
- Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a Wi-Fi router for networking.
Arris Touchstone CM8200A DOCSIS 3.1 Ultra Fast Cable Modem 32X8 Gigabit (Black) (Renewed)
$69.76
in stock
4 new from $69.76
Free shipping
Amazon.com
as of June 21, 2025 6:25 am
Features
| Part Number | CM8200A-cr |
| Warranty | 90 days limited warranty |
| Color | Black |
ARRIS SURFboard SB8200-RB DOCSIS 3.1 Cable Modem | Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | Two 1 Gbps Ports | 1 Gbps Max Internet Speeds | 4 OFDM Channels | - RENEWED
$106.15 in stock
6 new from $106.15
Amazon.com
as of June 21, 2025 6:25 am
Features
- Approved for Cox, Spectrum and Xfinity internet along with other US cable internet providers. Is NOT compatible with ATT, CenturyLink, Verizon, Froniter or other Fiber Optic, DSL or Satellite internet service providers.
- Does NOT include Wi-Fi and Does NOT support cable digital voice service.
- The SURFboard SB8200 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It is approved for cable internet speed plans up to 1 Gbps. Check your cable ISP website to confirm compatibility.
- 32 downstream x 8 upstream DOCSIS 3.0 bonded channels, or 2 downstream x 2 upstream OFDM DOCSIS 3.1 channels.
- Two 1-Gigabit Ethernet ports
The Video Review of Best arris cm820a
The Verdict
When you’re looking for arris cm820a, you’ll want to keep a few things in mind. First, decide what you want to use the arris cm820a for. Next, check the product reviews with comparision which we have listed as well. Once you’ve decided on arris cm820a you want to buy arris cm820a, look at the reputation of the manufacturer as well. You can compare prices and quality together before you make your purchase.