What is the best cable modem?

The top-performing cable modems on the market are built on the DOCSIS 3.1 standard , ensuring they support high-speed internet tiers while future-proofing your home network. When choosing a standalone cable modem, the best option depends on your specific internet plan speed and your budget.

Top Product Recommendations

Add to list Best Overall Cable Modem.

• It features a dedicated 2.5 Gbps Multi-Gigabit Ethernet port alongside a standard 1 Gbps port to prevent hardware bottlenecks on high-tier plans.
• Highly recommended by tech reviewers for its reliable Broadcom chipset, compact vertical footprint, and excellent heat dissipation.
• It is fully compatible with major U.S. cable providers including Comcast Xfinity, Spectrum, and Cox.

Add to list Best Premium Option.

• Offers a single ultra-fast 2.5 Gbps Ethernet port engineered to unlock the absolute maximum performance out of multi-gigabit cable plans.
• Built with advanced 32x8 channel bonding and downstream OFDM technology to ensure reduced latency during competitive gaming and 4K/8K streaming.
• Frequently praised for its highly stable performance under heavy, simultaneous smart-home network loads.

Add to list Best for Low Latency & Gaming.

• Equipped with a 2.5 Gbps LAN port and features built-in Active Queue Management (AQM) to significantly minimize lag during video calls and online gaming.
• Features robust internal lightning and power surge circuitry to protect your hardware investment from electrical spikes.
• Approved for all multi-gigabit speed tiers across major service providers like Comcast Xfinity, Cox Gigablast, and Charter Spectrum.

Add to list Best Budget Value.

• An affordable entry point into DOCSIS 3.1 technology that is perfect for standard 1 Gbps (Gigabit) plans or lower.
• Includes two 1-Gbps Ethernet ports instead of a multi-gig port, capping practical single-device speeds to around 940 Mbps.
• Exceptionally stable and widely available as a reliable, cost-effective alternative to paying monthly ISP equipment rental fees.

Key Comparison Overview

Important Buying Tips

To give you the most accurate recommendation, could you tell me:

• What is your current internet plan download speed (e.g., 400 Mbps, 1 Gbps, 2 Gbps)?
• Who is your internet service provider (ISP)?
• Do you already have a standalone Wi-Fi router , or do you need a modem/router combo unit?

If you have cable internet (Xfinity, Spectrum, Cox, etc.), my top pick right now is:

• NETGEAR Nighthawk CM3000 - $299.99 (NETGEAR + others)

🏆 Best overall: NETGEAR Nighthawk CM3000

It’s a DOCSIS 3.1 mid/high-split modem with a 2.5Gbps Ethernet port, supporting up to 2.5Gbps download and 1Gbps upload under compatible service. It is certified for Xfinity, Spectrum, and Cox.

The main reason I'd choose it over cheaper modems is upload speed. Newer cable networks are increasing upload speeds, and the CM3000 is designed for those higher-upload tiers.

Good alternatives

• ARRIS SURFboard S34 - $239.99 (Best Buy + others)

• ARRIS SURFboard S33 - $198.99 (Walmart - ROSE CITY WHOLESALE + others)

• Hitron CODA56 - $356.99 (Newegg.com - HyperCore)

• ARRIS SURFboard SB8200 - $169.00 (Walmart + others)

• ARRIS S34 — excellent choice, particularly if you have Xfinity and want enhanced upload speeds.

• ARRIS S33 — great for ordinary gigabit/multi-gig cable plans and often cheaper.

• Hitron CODA56 — strong value if your ISP certifies it.

• ARRIS SB8200 — good inexpensive option if your plan is around 1 Gbps or less.

One important caveat: don't buy based solely on the modem's advertised speed. Your ISP has to approve the exact model for your address/plan, and bundled telephone service can require a voice-compatible modem. The CM3000, for example, doesn't support Xfinity Voice.

If you tell me your ISP (Xfinity/Spectrum/Cox/etc.), internet speed, and whether you have a separate Wi-Fi router, I can tell you exactly which modem I'd buy and whether the CM3000 is worth the extra money.

If you have cable internet (Xfinity, Spectrum, Cox, etc.), my top pick in 2026 is the ARRIS SURFboard S34.

• ARRIS SURFboard S34 - $239.99 (Best Buy)

My picks

• Best overall: ARRIS SURFboard S34 — DOCSIS 3.1, 2.5-Gbps Ethernet, and support for newer mid-split upload technology. It's a particularly good choice if you have or may upgrade to faster Xfinity/Spectrum/Cox service.

• Best high-performance: NETGEAR Nighthawk CM3000 — better if you care about very fast uploads. It supports mid/high-split and up to 2.5 Gbps downstream/1 Gbps upstream, though it's considerably more expensive.

• NETGEAR Nighthawk CM3000 - $269.00 (B&H Photo)

• Best value: Hitron CODA56 — 2.5-Gbps Ethernet and DOCSIS 3.1/mid-split support without paying for the premium models.

• Best for ordinary gigabit-or-less service: ARRIS SB8200 — a proven DOCSIS 3.1 option, although I'd spend a little more on a 2.5-Gbps model if you're buying new today.

What I'd buy

If you're on Xfinity: S34 or CM3000. If you're on Spectrum: S34 or CODA56. If you're on Cox: S34 or CM3000. If you tell me your ISP and internet speed (e.g. Xfinity 1.2 Gbps), I can tell you the exact modem I'd buy and whether it's worth spending extra.

When looking for the best cable modem, the right choice depends on your internet service provider (ISP), your plan's speed, and whether you want a standalone modem or a combo unit. Standalone modems paired with a separate router or mesh system generally offer better performance, longevity, and flexibility.

Top-rated options for cable modems include:

Add to list Highlighted as a top pick by Wirecutter , this DOCSIS 3.1 modem is a reliable and cost-effective choice. It features a 2.5 Gigabit Ethernet port alongside an extra 1Gbps port, making it ideal for high-speed and gigabit plans while saving you monthly rental fees.

Add to list Built for cutting-edge high-split DOCSIS 3.1 services, this multi-gigabit modem delivers incredible download speeds up to 2.5Gbps and significantly boosted upload capacities. It’s an elite, future-proof choice if your provider (like Xfinity or Spectrum) supports mid/high-split configurations.

Add to list Solid, dependable mid-tier DOCSIS 3.1 alternatives that effortlessly handle standard gigabit plans without breaking the bank.

Add to list If you prefer an all-in-one device rather than separate hardware, this high-end Wi-Fi 7 modem/router combo is top-rated by RTINGS for heavy multi-gigabit wireless loads and extensive device coverage.

If you'd like, let me know:

• Your internet provider (e.g., Xfinity, Spectrum, Cox)
• Your current or planned internet speed tier (e.g., 500 Mbps, 1 Gbps, 2 Gbps+)
• Whether you want a standalone modem or an all-in-one router combo

I can help narrow down the exact model that fits your setup.

The "best" cable modem depends on your internet speed tier and your Internet Service Provider (ISP) like Xfinity, Spectrum, or Cox . For almost all households, a DOCSIS 3.1 modem is the sweet spot—offering multi-gigabit readiness, superior reliability, and rapid payback compared to monthly rental fees.

The top-rated cable modems are organized below by category:

Arris SURFboard S34 (Best Overall): Widely praised by tech publications as the top DOCSIS 3.1 choice. It features a 2.5 Gigabit Ethernet port to prevent speed bottlenecks and is fully optimized for the upgraded high-split upload tiers rolling out across major ISPs.

Hitron CODA56 (Best Value): Delivers stellar multi-gigabit performance with a 2.5 Gbps Ethernet port at a significantly lower price point than competing high-end hardware.

Arris SURFboard S33 (Best Classic / Download-Focused): A proven, highly reliable gold standard featuring a 2.5 GbE port alongside a 1 GbE port. It is exceptionally stable for standard gigabit plans , though it lacks some of the newer mid-split upload optimizations of the S34.

Netgear Nighthawk CM3000 (Best for Heavy Users & Gaming): A high-end mid/high-split DOCSIS 3.1 modem built for maximum throughput on heavy-load networks. It includes a 2.5Gbps port and extra link-aggregation support, making it ideal if you push your connection to the absolute limit.

Note: Separate standalone modems paired with a standalone Wi-Fi Router or mesh system almost always outperform 2-in-1 combo units in longevity and performance.

To help narrow down the exact right choice, tell me:

• What is your current internet speed plan (e.g., 300 Mbps, 1 Gbps, 2+ Gbps)?
• Who is your internet service provider (Xfinity, Spectrum, Cox, etc.)?

If you mean a standalone cable modem (not a modem/router combo), my top pick in 2026 is the ARRIS SURFboard S34.

ARRIS SURFboard S34

$239.99

My picks

Recent 2026 testing/guides generally agree that DOCSIS 3.1 with a 2.5GbE Ethernet port is the sweet spot. DOCSIS 4.0 is emerging, but retail 4.0 modems remain much less broadly useful than 3.1 models.

If I were buying today

For most people: S34.
For Xfinity/Cox with fast upload service: CM3000.
For the best bang for the buck: CODA56.
For a normal 500 Mbps–1 Gbps plan: S33 or even an SB8200 if it's substantially cheaper.

ARRIS SURFboard S34

$239.99

NETGEAR Nighthawk CM3000

$269.99

ARRIS SURFboard Multi-Gig

$199.00

ARRIS SURFboard SB8200

$169.00

Motorola B12

$144.95

One important caveat: the "best" modem depends heavily on your ISP and plan. The modem has to be approved for your specific service, and a standalone modem does not provide Wi-Fi—you'll need a separate router/mesh system.

If you tell me your ISP (Xfinity, Spectrum, Cox, etc.) and internet speed, I can narrow it down to the single best modem for your setup and find the best current price.

The "best" cable modem depends on your internet speed tier and your Internet Service Provider (ISP) like Xfinity, Spectrum, or Cox . Buying a standalone DOCSIS 3.1 cable modem is almost always recommended over a cheap combo unit, letting you pair it with a high-performance standalone router or mesh system.

The top-rated cable modems on the market are categorized below by budget and performance:

Add to list Widely considered the best overall choices for gigabit and multi-gigabit download speeds. They feature a 2.5 Gigabit Ethernet port to prevent speed bottlenecks and are fully certified to work with major US cable providers.

Add to list The best value pick. It features a 2.5GbE port and delivers high-end DOCSIS 3.1 performance and mid-split upload compatibility at a lower price point than competitors.

Add to list The best high-end/future-proof option. It is engineered with mid/high-split technology to support ultra-fast next-gen cable upload tiers (up to 1 Gbps uploads) alongside 2.5 Gbps downloads, making it ideal for heavy demands and multi-gig plans.

Add to list The reliable budget-to-midrange staple for standard gigabit plans. While it features standard 1 Gbps Ethernet ports rather than a multi-gig port, it remains a sturdy, time-tested DOCSIS 3.1 workhorse.

If you share your internet speed tier (e.g., 500 Mbps vs. 1.2 Gbps) and your internet provider (Xfinity, Spectrum, Cox, etc.), I can pinpoint the exact compatible model that will maximize your plan without overspending.

If you mean a standalone cable modem (not a modem/router combo), my top pick for 2026 is the ARRIS SURFboard S34.

ARRIS SURFboard S34

$239.99

My picks

The S34 has a 2.5Gb Ethernet port plus a 1Gb port, and ARRIS lists it as DOCSIS 3.1 and compatible with major U.S. cable providers.

The CM3000 is the better choice if you're paying for very fast service or expect to upgrade soon. NETGEAR says it supports up to 2.5Gbps download and 1Gbps upload and is certified for Xfinity, Cox, and Spectrum.

NETGEAR Nighthawk CM3000

$299.99

One important catch: the best modem depends heavily on your ISP and speed plan. If you tell me your provider (Xfinity, Spectrum, Cox, etc.) and your internet speed, I can tell you exactly which modem I'd buy and whether it's worth spending extra.

The Arris SURFboard S34 Go to product viewer dialog for this item. is widely recognized by expert review platforms like HighSpeedInternet.com as the best overall standalone cable modem due to its forward-compatible DOCSIS 3.1 architecture and dedicated mid-split upload optimizations.

When upgrading your home network to eliminate monthly Internet Service Provider (ISP) rental fees, you should focus on standalone DOCSIS 3.1 modems to handle gigabit tiers effortlessly.

Top Standalone Cable Modems

• Equipped with a 2.5 Gbps Ethernet port alongside an extra 1 Gbps port.

• Features crucial mid-split support to unlock newly upgraded, faster upload speed tiers from cable giants like Xfinity and Cox.

• Built on a highly stable Broadcom chipset that minimizes buffer bloat.

• Serves as a top download performance alternative if your neighborhood hasn't received next-gen upload updates.

• Includes a primary 2.5 Gbps port that prevents download bottlenecks on plans exceeding 940 Mbps.

• Saves desktop real estate via its compact, small-footprint chassis.

• Provides maximum value for price-conscious buyers wanting next-gen specs.

• Delivers full mid-split upload support and a 2.5 Gbps port at a very accessible price point.

• Certified out of the box for immediate activation on Xfinity, Spectrum, and Cox.

• Engineered specifically as a premium option for power users and heavy cloud uploaders.

• Supports dual link-aggregation configurations across its multiple physical ports.

• Features rare high-split capability to maximize upstream throughput on ultra-premium cable tiers.

Standalone vs. All-in-One Gateways

A brief overview of how standalone units stack up against modem-router combinations:

To ensure you pick the right model, could you share your current cable ISP (e.g., Xfinity, Spectrum, Cox), your subscribed speed tier , and whether you already have a standalone Wi-Fi router or mesh system?

If you want the best cable modem for most people in 2026, I’d pick the ARRIS SURFboard S34.

ARRIS SURFboard S34

$239.99

My picks

The S34 is particularly attractive because it has a 2.5-Gbps Ethernet port and DOCSIS 3.1. Current modem recommendations emphasize 2.5-Gbps Ethernet if you're on gigabit or faster service, since a 1-Gbps port can become the bottleneck.

For newer cable networks with faster upload speeds, I'd seriously consider the NETGEAR CM2500 instead. It's designed for mid/high-split DOCSIS 3.1 and supports up to 2 Gbps download and 1 Gbps upload where the ISP/network supports it.

NETGEAR Nighthawk CM2500

$197.00

One important caveat: the "best" modem depends heavily on your ISP. A modem that's excellent for Xfinity may not be approved or fully supported by Spectrum, Cox, etc.

If you tell me your ISP (Xfinity, Spectrum, Cox, etc.) and your internet speed, I can tell you exactly which modem I'd buy and which ones I'd avoid.