The 5 Best Retail Cable Modems for Spectrum
Spectrum already supplies a compliant modem at no additional charge for eligible internet service. That changes the value calculation: buying your own is a choice about the exact hardware and network layout, not an automatic way to erase a modem rental fee. Spectrum also says customer-owned modems are authorized only on non-symmetrical tiers, and Home Phone requires its own equipment. Check your address, plan and the current authorized-modem list before spending a dollar.
If a retail modem still makes sense, Hitron CODA is the straightforward DOCSIS 3.1 option. Netgear CM2500 and CM3000 serve faster wired networks at different price points; ARRIS SB8200 is the familiar two-gigabit-port model for qualifying plans, and S34 adds a 2.5 Gb port. These are modem-only choices, so budget for a router separately. I would keep Spectrum's included unit if it already meets the plan and my router needs.
Our top 5 retail cable modems for spectrum
Swipe to compare price, rating and best use →
| Product | Price | Rating | Best for |
|---|---|---|---|
01 Hitron CODA DOCSIS 3.1Details ↓ | $149.99 | 4.1/5Amazon | Best straightforward approved modem |
02 Netgear Nighthawk CM2500Details ↓ | $197.00 | 4.3/5Amazon | Best 2.5 Gb router pairing |
03 ARRIS SURFboard SB8200Details ↓ | $169.00 | 4.4/5Amazon | Best familiar gigabit model |
04 ARRIS SURFboard S34Details ↓ | $235.99 | 4.3/5Amazon | Best ARRIS 2.5 Gb option |
05 Netgear Nighthawk CM3000Details ↓ | $284.00 | 4.3/5Amazon | Best premium multi-gig spare |
01 — Hitron
Best straightforward approved modemHitron CODA DOCSIS 3.1
Hitron CODA is a modem-only DOCSIS 3.1 choice for a Spectrum plan that allows this exact authorized model. It is a cleaner purchase than a modem-router gateway if you already own a router you like. I would verify the model code against Spectrum's live list at the service address, then check which Ethernet port will feed the router. It is not a Wi-Fi replacement by itself.
It leads for a buyer deliberately choosing a retail modem without paying immediately for more wired capacity. CM2500 below is the better match for a multi-gig router; keeping Spectrum's included device may still be the best value.
View on Amazon ↗Eligible Spectrum customers who already have a separate router.
Your tier is symmetrical, Home Phone, or not approved for this model.
What I like
+DOCSIS 3.1 modem-only setup.
What to weigh
−No router or Wi-Fi in the box.
- Type
- DOCSIS 3.1 cable modem
- Class
- Gigabit
- WiFi
- None
- Voice
- None
- Service
- Coaxial cable internet only
02 — NETGEAR
Best 2.5 Gb router pairingNetgear Nighthawk CM2500
CM2500 belongs in a setup with a multi-gig router, not just a fast-looking internet plan. Netgear lists DOCSIS 3.1 and a high-speed Ethernet path; I would match its port to the router's WAN port and confirm Spectrum authorizes this exact model for the address. If the router only has gigabit WAN, the extra modem capacity may never be used.
Second place reflects a real upgrade path, with a higher offer than Hitron. I would make it first for an approved multi-gig wired setup; for ordinary gigabit use the cheaper modem or Spectrum-supplied unit is easier to justify.
View on Amazon ↗Customers with an approved plan and multi-gig router WAN.
Your router and service cannot use the faster link.
What I like
+Higher-speed wired handoff potential.
What to weigh
−Costs more and still needs a router.
- Type
- DOCSIS 3.1 cable modem
- Ethernet
- 2 × 1 GbE
- MultiGig
- WAN link aggregation with compatible router
- WiFi
- None
- Voice
- None
03 — ARRIS
Best familiar gigabit modelARRIS SURFboard SB8200
SB8200 is a long-running DOCSIS 3.1 modem with two 1 Gb Ethernet ports on the exact listing. It suits a Spectrum customer whose approved non-symmetrical tier and router fit a gigabit-class handoff. I would not assume the two sockets double the speed of one ordinary router port; link aggregation and provider support are separate questions.
Third place is for a known simpler wired path and strong owner history. It moves up for a buyer who does not need a 2.5 Gb port; CM2500 and S34 remain more relevant when the downstream network is genuinely multi-gig.
View on Amazon ↗Approved gigabit-plan buyers with a separate router.
You need a single 2.5 Gb handoff.
What I like
+Documented DOCSIS 3.1 model with extensive owner history.
What to weigh
−Two 1 Gb ports are not a simple multi-gig socket.
- Type
- DOCSIS 3.1 cable modem
- Ethernet
- 2 × 1 GbE
- WiFi
- None
- Voice
- None
- StockAtCheck
- One new unit displayed
04 — ARRIS
Best ARRIS 2.5 Gb optionARRIS SURFboard S34
ARRIS S34 gives an approved DOCSIS 3.1 modem buyer a 2.5 Gb Ethernet port alongside a 1 Gb port. It is useful when the router and service can exploit the faster handoff, but I would compare the exact port arrangement and offer against CM2500 before paying. It does not supply wireless coverage on its own.
Fourth place is an ARRIS-brand alternative to the multi-gig Netgear. I would rank it first for someone with a compatible router who prefers ARRIS's port arrangement; otherwise its higher checked offer is hard to defend over Hitron.
View on Amazon ↗ARRIS buyers with a multi-gig router and approved plan.
The included Spectrum modem or a gigabit port is enough.
What I like
+2.5 Gb port in a modem-only device.
What to weigh
−Higher offer and no built-in router.
05 — NETGEAR
Best premium multi-gig spareNetgear Nighthawk CM3000
CM3000 is the premium modem-only option in this group, with a 2.5 Gb wired handoff and a substantially higher current offer. Spectrum lists the model among authorized retail modems for qualifying service, but I would confirm the exact tier and router before spending this much. The extra capacity cannot improve a network bottleneck elsewhere in the home.
Fifth place reflects price rather than a claim of poor hardware. It moves up only when the exact CM3000 specification and a qualifying network justify it; CM2500 and S34 cover most of the same decision at lower offers.
View on Amazon ↗Approved buyers optimizing a specific multi-gig wired network.
You have a gigabit router or are buying on price alone.
What I like
+Premium DOCSIS 3.1 multi-gig modem path.
What to weigh
−Highest modem-only offer in the shortlist.
- Type
- DOCSIS 3.1 cable modem
- Ethernet
- 1 × 2.5 GbE + 2 × 1 GbE
- WiFi
- None
- Voice
- None
- Compatibility
- Provider and tier confirmation required
Price information
Amazon price and availability checked Oct 17, 2026, 10:25 PM Lisbon time. Prices and availability are subject to change; the information shown on Amazon.com at purchase applies.
Our process
How we picked.
We compare five relevant products for different needs, using documented specifications, clear use cases and practical trade-offs. Our goal is to make the differences clear and help you choose with confidence.
- 01Relevance
Each product must fit the guide’s intended use, audience and requirements.
- 02Specifications
We compare the key product details that meaningfully affect the buying decision.
- 03Use case and fit
We compare the intended use, configuration and practical fit of every selected product.
- 04Strengths and limitations
We explain where each option performs best and the compromises to consider.
Good questions
FAQ — Retail Cable Modems for Spectrum
01Will buying my own Spectrum modem remove a modem rental fee?+
Spectrum says it provides a compliant modem at no additional charge for eligible internet service. Compare your actual bill and plan before assuming ownership saves money.
02Can I use any DOCSIS 3.1 modem with Spectrum?+
No. Check the current Spectrum authorized retail list for your plan and address. Customer-owned modems are not authorized for its symmetrical tiers or Home Phone service.
The short answer
Start with the Hitron CODA DOCSIS 3.1.
I recommend it for eligible spectrum customers who already have a separate router. Choose something else if your tier is symmetrical, home phone, or not approved for this model.
View on Amazon ↗Keep looking
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