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Item #:
62823930
ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation)
Item #:
62823930
0 ratings
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Imported from USA store
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The Touchstone DOCSIS 3.0 8x4 Cable Modem CM820 delivers ultra-high speed data access to cable service subscribers’ homes and businesses.
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What Stands Out
Rapid Setup
The ARRIS CM820A offers a 1-step activation process, simplifying installation so users can quickly get online without hassle, ensuring a seamless transition to high-speed internet.
High-Speed Capability
With DOCSIS 3.0 technology, the CM820A delivers high-speed internet performance, enabling multiple devices to connect simultaneously without lag, catering to the needs of heavy online users.
Broad Compatibility
Designed to work with most major cable providers, the ARRIS CM820A ensures ultimate flexibility and convenience, allowing users to choose their internet service without worrying about modem compatibility.
Product Details
| Modem type | Cable Modem |
| Compatible service provider | spectrum, optimum, cox, xfinity |
| Docsis version | 3.0 |
| Transfer rate | 300 Mbps |
| Number of downstream channels | 8 |
| Number of upstream channels | 4 |
| Brand | ARRIS |
| Number of ports | 2 |
| Model | CM820A |
| Internal/external | External |
| Has written warranty | No |
| Item Weight | 1.5 lbs (680 grams) |
Who Should Buy?
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High-Speed Users
Ideal for gamers and streamers needing reliable, high-speed internet connectivity for optimal performance.
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Single Household
Best suited for smaller homes with few connected devices, ensuring easy setup and efficient bandwidth usage.
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Budget-Conscious
Great for users looking for an affordable modem that still delivers essential high-speed internet functionality.
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Large Families
May not support multiple simultaneous high-demand devices effectively in larger households without interruptions.
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Advanced Users
Lacks some advanced features and settings that tech-savvy users might need for customization and optimization.
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Cable Alternatives
Not suitable for users relying on fiber optics or satellite connections, as it's specifically a cable modem.
Product Description
ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation)
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Customer Questions & Answers
-
Question:
Is the CM820 compatible with all Internet Service Providers?
Answer: Please check with your Internet Service Provider for compatibility in your home or office. -
Question:
What speeds can I expect with this modem?
Answer: The CM820 enables data services at speeds greater than 300Mbps. -
Question:
Can this modem support business Ethernet services?
Answer: Yes, the CM820 supports Ethernet Services over DOCSIS for business users.
ARRIS Arris Modems Editorial Review
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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12 June 2026 · via Trustpilot
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Features & Benefits
- 8x4 bonded channels ensure superior throughput.
- Built-in MoCA® immunity filter for reliable performance.
- Two independent RF tuners enhance channel reception up to 1GHz.
- Supports high-speed data access over 300Mbps.
- Designed for advanced users with full IPv6 support.
- ARRIS reliability ensures dependable service for homes and businesses.
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