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ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation)
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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.
Λεπτομέρειες προιόντος
| 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.
ΠΕΡΙΓΡΑΦΗ ΤΟΥ ΠΡΟΪΟΝΤΟΣ
ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation)
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Ερωτήσεις & Απαντήσεις Πελατών
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ερώτηση:
Is the CM820 compatible with all Internet Service Providers?
απάντηση: Please check with your Internet Service Provider for compatibility in your home or office. -
ερώτηση:
What speeds can I expect with this modem?
απάντηση: The CM820 enables data services at speeds greater than 300Mbps. -
ερώτηση:
Can this modem support business Ethernet services?
απάντηση: Yes, the CM820 supports Ethernet Services over DOCSIS for business users.
ARRIS Arris Modems Editorial Review
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Customer Reviews & Ratings
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Πλεονεκτήματα
- Fast internet speeds
- Easy installation process
- Reliable performance
- Compatible with most ISPs
- Future-proof design
Μειονεκτήματα
- Occasional compatibility issues with older devices.
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Ασφαλές Στάδιο Πληρωμής
Global Delivery
Easy Returns
Genuine Products
Product Price History
Σημαντικές πληροφορίες
- Περιορισμοί : Για προϊόντα που αποστέλλονται διεθνώς, σημειώστε ότι τυχόν εγγύηση του κατασκευαστή ενδέχεται να μην είναι έγκυρη, οι επιλογές εξυπηρέτησης του κατασκευαστή ενδέχεται να μην είναι διαθέσιμες, τα εγχειρίδια, οι οδηγίες και οι προειδοποιήσεις ασφαλείας του προϊόντος ενδέχεται να μην είναι στη γλώσσα της χώρας προορισμού, τα προϊόντα (και τα συνοδευτικά υλικά) ενδέχεται να μην είναι σχεδιασμένα σύμφωνα με τα πρότυπα, τις προδιαγραφές και τις απαιτήσεις επισήμανσης της χώρας προορισμού και τα προϊόντα ενδέχεται να μην συμμορφώνονται με την τάση και άλλα ηλεκτρικά πρότυπα της χώρας προορισμού (απαιτώντας τη χρήση προσαρμογέα ή μετατροπέα, εάν χρειάζεται). Ο παραλήπτης είναι υπεύθυνος να διασφαλίσει ότι το προϊόν μπορεί να εισαχθεί νόμιμα στη χώρα προορισμού. Όταν παραγγέλνετε από το Ubuy ή τις θυγατρικές της, ο παραλήπτης είναι ο εισαγωγέας αρχείου και πρέπει να συμμορφώνεται με όλους τους νόμους και τους κανονισμούς της χώρας προορισμού.
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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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Fastest cross-border delivery
Χαρακτηριστικά & Πλεονεκτήματα
- 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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Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.