Listing TemplateProduct Details Arris CM820A DOCSIS 3.0 Cable Modem – Fast & Reliable Internet with IPv6
Manufacturer Part Number: CM820A
Brand: Arris
Condition: Refurbished
Warranty: 90-Day Warranty
The ARRIS Touchstone CM820 DOCSIS 3.0 Cable Modem is a high-performance solution designed to deliver ultra-fast internet connectivity to homes and small businesses. Featuring an 8x4 bonded channel configuration, the CM820 provides exceptional data speeds—perfect for streaming HD content, online gaming, remote work, and other bandwidth-intensive applications.
Designed for both residential and commercial environments, this modem offers reliable wired performance and is backward compatible with earlier DOCSIS versions, ensuring flexible deployment across a wide range of cable networks.
Key Features
- DOCSIS 3.0 technology with backward compatibility to DOCSIS 2.0, 1.1, and 1.0
- 8x4 Channel Bonding for enhanced speed and performance
- Supports IPv6 for next-generation networking
- MoCA® Immunity Filter Embedded
- Multi-colored diagnostic LEDs for real-time status monitoring
- No WiFi built-in – Requires separate wireless router for WiFi connectivity
Technical Specifications
- Downstream Channels: Up to 8 bonded channels
- Upstream Channels: Up to 4 bonded channels
- Downstream Data Rate: Up to 343 Mbps (DOCSIS) / 444 Mbps (EuroDOCSIS)
- Upstream Data Rate: Up to 122 Mbps
- RF Downstream Frequency: 108-1002 MHz
- RF Upstream Frequency: 5-42 MHz (A model), 5-65 MHz (B, C, S models)
- Modulation: 64/256 QAM (Downstream); QPSK, 8/16/32/64/128QAM (Upstream S-CDMA only)
- Ethernet Port: 1 x 10/100/1000 Base-T (RJ-45)
- Dimensions: 6.2 x 1.7 x 5.7 inches
- Weight: 0.81 lbs
- Power Supply: Integrated Universal Power Supply (115-240 VAC, 50/60 Hz)
- Operating Temperature: 32 to 104 °F (0 to 40 °C)
Compatibility
This Arris modem is compatible with most major cable internet providers including Comcast Xfinity, Spectrum, Charter, Time Warner Cable, Mediacom, and Suddenlink in many regions.
Important: Please verify compatibility with your specific internet service provider and plan before purchasing. Some speed tiers may not be supported. Contact your service provider to confirm that the CM820A is approved for your area.
This modem is an excellent choice for users looking to maximize high-speed wired internet access without built-in wireless functionality, delivering dependable performance for a wide range of & CUSTOMER SERVICE
Immediate payment is required.
We accept PayPal Payments only.
Credit Cards will be processed by PayPal.
Sales tax:
Orders to California addresses are subject to 7.75% - 9% sales tax.
We offer free shipping only within United States.
We'll only ship to the address provided during the checkout, No exceptions!
All orders will ship out according to the handling time with tracking a number within 24 hours.
Friday, holiday, and weekend orders will be shipped out on the next business day.
Estimated shipping times are determined by the United State Postal Services/DHL/FedEx/UPS, customs delays, holiday and/or weather delays which are out of our control.
Yes, we ship internationally. Please contact us for a shipping rate prior to buying.
We accept returns that are postmarked back to us within 30 days from delivery date.
Please include your order number and reason for return with all exchanges.
Refund will be given as money back.
Return shipping will be paid by the seller.
25 percent restocking fee will be charged.
Important: All returns required an RMA number or the package will be rejected without proper documentation.Please contact us for RMA instruction.
90 days warranty unless stated with no warranty under the "product detail."
Our goal is to provide you with the utmost positive shopping experience - from purchase to delivery.
If you have any questions about the product or your order be sure to contact us via Messages for assistance and we will do the best we can to ensure your satisfaction.
