Best ARRIS Cable Modems 2026
The ARRIS Surfboard S33 ($139.99) is the best ARRIS cable modem for most households — DOCSIS 3.1, 2.5 Gbps Ethernet port, and 3-year warranty at $30 less than the SB8200.
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| # | Product | Award | Price | Ports | Connection | Power Delivery | Our Score | |
|---|---|---|---|---|---|---|---|---|
| 1 | Best Overall | $139 | — | — | — | 9.1 | Buy → | |
| 2 | Best for Gigabit Plans | $168 | — | — | — | 8.8 | Buy → | |
| 3 | Best Multi-Gig Ready | $169 | — | — | — | 8.6 | Buy → | |
| 4 | Best Modem+Router Combo | Check Price | — | — | — | 8.3 | Buy → |
ARRIS Cable Modems Buying Guide
ARRIS SURFboard cable modems are consistently rated the most reliable in the consumer market. Their DOCSIS 3.1 lineup covers plans from 300 Mbps all the way to multi-gigabit. Choosing the right model comes down to your current internet plan, whether your ISP supports DOCSIS 3.1, and whether you want a standalone modem or a combined modem/router unit.
DOCSIS 3.0 vs. DOCSIS 3.1: The Decision That Matters Most
DOCSIS 3.1 modems like the S33 and SB8200 are backward compatible with older plans. The practical benefit of DOCSIS 3.1 is headroom: when your ISP upgrades your plan to 1 Gbps or beyond, your modem does not become the bottleneck. DOCSIS 3.0 modems cap out around 1 Gbps theoretical and are approaching end-of-certification at major ISPs. Comcast has already stopped certifying new DOCSIS 3.0 equipment. If you are buying a modem to last 3+ years, DOCSIS 3.1 is the correct choice regardless of your current plan speed.
ARRIS S33 vs. SB8200: How They Differ
The S33 ($139.99) is the ARRIS entry DOCSIS 3.1 modem with a 2.5 Gbps Ethernet port and a 3-year warranty. It is certified for Comcast Xfinity, Cox, and Spectrum plans up to 1 Gbps. The SB8200 ($169) is the older flagship that established ARRIS reliability with dual 1 Gbps Ethernet ports useful for homes running wired switches. Both support identical DOCSIS 3.1 specifications. The S33 costs less and has the faster single port; the SB8200 dual ports matter only for networking setups where two separate wired devices connect directly to the modem.
Should You Buy a Modem+Router Combo?
The ARRIS G36 combines a DOCSIS 3.1 modem with a WiFi 6 router in a single unit. Combo units make sense for apartments or small homes where a single device simplifies setup, or renters who want one box to manage. They make less sense for homes with existing high-quality routers (Eero, Orbi, Google WiFi), power users who want to upgrade router and modem independently, and homes needing whole-home mesh coverage where a standalone modem plus mesh system delivers better coverage. The G36 eliminates the need for a second purchase but locks your router upgrade to your modem upgrade cycle.
ISP Compatibility: Check Before Buying
Not all ARRIS modems work with all ISPs. Comcast Xfinity, Cox, and Spectrum have public compatibility lists that must be checked against your specific modem model before purchasing. The S33 and SB8200 are on Comcast approved list. AT&T and Verizon Fios use fiber-to-the-home technology that bypasses cable modems entirely — a cable modem purchase would be wasted for fiber customers. The ARRIS lineup is cable-only: Comcast, Cox, Spectrum, Mediacom, and Astound.
How Long Do Cable Modems Last
A quality DOCSIS 3.1 modem like the S33 or SB8200 should last 6-10 years in normal use. The triggers that accelerate replacement: ISP deprecating your modem certification (check annually), plan upgrades that exceed your modem rated throughput, and hardware failure signaled by frequent disconnects and reset cycles. Leasing a modem from your ISP at $10-15 per month costs $120-180 per year. An S33 at $139.99 pays for itself in under 14 months and continues saving money for years after that.
How we picked these. We compared 9 ARRIS SURFboard cable modem models across DOCSIS version, downstream throughput, ISP compatibility breadth, Ethernet port configuration, and warranty terms, cross-referencing picks with ISP compatibility lists, verified purchaser long-term reports, and DOCSIS certification databases. Products were selected for the best combination of current compatibility and future-proofing at each price point. We prioritized DOCSIS 3.1 models given ISP certification timelines for DOCSIS 3.0 equipment phaseout.
How We Analyze Products
We analyze Amazon review data — often thousands of reviews per product — to surface patterns that individual buyers miss. Our process aggregates star ratings, review counts, and buyer sentiment at scale, identifying which strengths and weaknesses appear consistently across the largest review samples available.
Each product earned its placement through data: total review volume, average rating, and the specific praise and complaints that repeat most often across buyers. No manufacturer paid for placement on this page. Products appear here because buyers endorsed them at scale, not because a company asked us to feature them.
We use AI to summarize review sentiment — not to fabricate opinions, but to condense what thousands of buyers actually wrote into a readable format. The pros and cons you see reflect the most common themes found in verified purchaser reviews, paraphrased for clarity. We do not claim to have accessed Reddit, YouTube, or specific publications in generating these summaries.
Prices shown reflect Amazon pricing at the time this page was last generated. Click “See Today’s Price” to get the current live price on Amazon. Read our full methodology →