Best Modems of 2026: 10 Compared
A modem is the one piece of home networking gear most people forget about until the rental fee on a bill finally registers. Across the ten models compared here, the spread is wide: some are pure cable modems that hand off to a router you already own, one bundles the router right in, and one swaps the whole category for a three-piece mesh system. Sorting out which job each one is built for matters more than the badge on the box.
Modems split neatly into camps, and knowing which camp you're shopping in saves money. Some units in this lineup are modem-only boxes that require a separate WiFi router, like the Arris SURFboard SB8200 and both Hitron Coda models. Others, such as the Netgear Nighthawk Modem Router Combo (CAX30), combine the modem and router so a single device handles everything. And the TP-Link Deco X55 takes a different route entirely, replacing your router and extender with a three-pack mesh that blankets a large floor plan. Compatibility with Xfinity, Spectrum, and Cox shows up again and again in the data, so most of these will slot into a typical cable plan. To assemble this guide we pulled current Amazon specifications, product images, and pricing for the ten most relevant modems, then scored each on capability, value, and how cleanly it fits a real buyer's setup. Docsis generation, Ethernet port count, rated plan speed, and whether WiFi is built in were the dimensions that moved the rankings most. What follows is the short verdict, then a deeper look at every model's strengths and the trade-offs worth knowing before you commit.
The short version: The Netgear Nighthawk Modem Router Combo earns our top spot because it folds a Docsis 3.1 cable modem and a WiFi 6 router into a single unit, so there's nothing else to buy. If you only need to replace a rented modem and keep your current router, the Netgear Cable Modem Docsis 3.0 is the value pick.
- Ten modems were compared, spanning modem-only boxes, one modem-router combo, and a three-pack mesh system.
- The Netgear Nighthawk Modem Router Combo (CAX30) is the only all-in-one here, pairing a Docsis 3.1 modem with a WiFi 6 router.
- The Netgear Cable Modem Docsis 3.0 (CM500) is the budget pick and the only Docsis 3.0 model on the list.
- Both Hitron Coda modems are cable-only, and the CODA56 is explicitly not for fiber, DSL, satellite, or fixed wireless service.
- The mid/high-split CM3000 Nighthawk modems target the fastest cable plans with up to 2.5Gbps download and 1Gbps upload.
Our Top 3 Picks
- Docsis 3.1 modem and WiFi 6 router in a single unit
- Coverage up to 2,000 sq. ft.
- Four 1-Gig Ethernet ports with port aggregation support
- USB 3.0 port for storage and wired devices
- Compatible with Xfinity, Spectrum, Cox and more
- Mid/high-split Docsis 3.1 rated up to 2.5Gbps download
- Up to 1Gbps upload speeds
- Engineered for the fastest Docsis 3.1 cable tiers
- Pairs with WiFi 6E, WiFi 7, or Orbi systems
- WiFi 6 AX3000 mesh covering up to 6,500 sq. ft.
- Connects up to 150 devices
- Three Gigabit Ethernet ports per unit
- Supports wired Ethernet backhaul
Full Comparison — All 10 Modems
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Editor's Choice |
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Best Value |
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Premium Pick |
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How They Compare
Top picks — strengths at a glance
Brands compared
All 10, Reviewed
1 Netgear Nighthawk Modem Router Combo
This CAX30 is the only true all-in-one in the group, marrying a Docsis 3.1 cable modem to a WiFi 6 router rated at AX2700 2.7 Gbps. It covers up to 2,000 sq. ft. and brings four 1-Gig Ethernet ports plus a USB 3.0 port for wired gear and storage. Folding two devices into one is what carried it to the top of the comparison.
- Docsis 3.1 modem and WiFi 6 router in a single unit
- Coverage up to 2,000 sq. ft.
- Four 1-Gig Ethernet ports with port aggregation support
- USB 3.0 port for storage and wired devices
- Built-in router means you can't reuse a router you already own
2 Netgear Nighthawk Docsis 3.1 Mid/High-Split Modem
The CM3000-1AZNAS is a mid/high-split Docsis 3.1 cable modem rated for plans up to 2.5Gbps download and 1Gbps upload. Its listing stresses that those top speeds can only be reached with mid/high-split service, and it expects you to bring your own WiFi router. Pairing it with a Netgear WiFi 6E, WiFi 7, or Orbi system is the suggested path to peak performance.
- Mid/high-split Docsis 3.1 rated up to 2.5Gbps download
- Up to 1Gbps upload speeds
- Engineered for the fastest Docsis 3.1 cable tiers
- Pairs with WiFi 6E, WiFi 7, or Orbi systems
- Requires a separate WiFi router, unlike the all-in-one CAX30
3 TP-Link Deco X55 AX3000 WiFi 6 Mesh System
Rather than a cable modem, the Deco X55 is a WiFi 6 AX3000 mesh system shipped as a three-pack to blanket up to 6,500 square feet. It's rated to connect up to 150 devices and gives each unit three Gigabit Ethernet ports, with wired Ethernet backhaul supported for steadier speeds. Think of it as the router-and-extender replacement in this roundup, not a modem swap.
- WiFi 6 AX3000 mesh covering up to 6,500 sq. ft.
- Connects up to 150 devices
- Three Gigabit Ethernet ports per unit
- Supports wired Ethernet backhaul
- Heavier than most at about 5.5 lb across the three-pack
- Replaces a router and extender, not a cable modem
4 Arris SURFboard SB8200 Docsis 3.1 Multi‑Gig Cable Modem
The SURFboard SB8200 is a Docsis 3.1 modem-only unit supporting cable plans up to 2 Gbps through two 1Gbps Ethernet ports. Its pitch is straightforward: own your modem, skip monthly equipment charges, and add your own router or mesh for WiFi. A space-saving footprint and simple cable-power-activate setup round it out.
- Docsis 3.1 support for cable plans up to 2 Gbps
- Two 1Gbps Ethernet ports
- Own your modem and avoid monthly equipment charges
- Space-saving footprint with status LEDs
- Needs a separate WiFi router or mesh system for any wireless
5 Netgear Cable Modem Docsis 3.0
The CM500 is the budget anchor of this list and the lone Docsis 3.0 model, built with 16x4 channel bonding. It supports plans such as Xfinity up to 200Mbps and Cox up to 150Mbps, and Netgear pitches it as a way to recoup yearly modem-rental fees. A single Gigabit Ethernet port connects to your computer or your own WiFi router.
- Replaces a rented modem to cut yearly equipment fees
- Works with any separate WiFi router
- 16x4 channel bonding on Docsis 3.0
- Single Gigabit Ethernet port for wired hookup
- Docsis 3.0 and up-to-400-Mbps support trail the 3.1 models here
- Only one Ethernet port, versus four on the CAX30
6 Arris (SB8200-RB)
This renewed SB8200 carries fast Docsis 3.1 hardware with a 1 Gbps maximum internet speed across two 1-Gigabit Ethernet ports. The channel layout splits into 32 downstream by 8 upstream Docsis 3.0 bonded channels, or 2 downstream by 2 upstream Ofdm Docsis 3.1 channels. It's approved for Comcast Xfinity, Cox, Charter Spectrum, and other US providers, but it includes no WiFi and no digital voice support, so a separate router is required. The renewed status helps explain the lower placement on price-per-spec.
- Docsis 3.1 with 32x8 bonded channels
- Two 1-Gigabit Ethernet ports
- Approved for Cox, Spectrum, Xfinity and more
- 1 Gbps maximum internet speed
- No WiFi and no digital voice support
- Renewed unit rather than new
7 Hitron CODA56 Cable Internet Modem Only
The Hitron CODA56 is a modem-only Docsis 3.1 unit supporting plans up to 2.5 Gbps through a 2.5 Gbps Ethernet port. Its listing is unusually direct: it works exclusively with cable (docsis) service from providers like Xfinity, Spectrum, and Cox, and is not for fiber, DSL, satellite, or fixed wireless. To hit full speed you'll need a separate router with a matching 2.5 Gbps port.
- Docsis 3.1 supporting plans up to 2.5 Gbps
- 2.5 Gbps Ethernet port
- Compatible with Xfinity, Spectrum, and Cox cable service
- Clear setup requirements spelled out
- Cable-only — not compatible with fiber, DSL, satellite, or fixed wireless
- No WiFi, so a separate 2.5 Gbps-capable router is required
8 Hitron Coda Docsis 3.1
The Hitron Coda Docsis 3.1 supports cable plans up to 1 Gbps and connects through a single Ethernet port. Like its CODA56 sibling, it's coaxial-cable-only — not fiber or DSL — and brings no WiFi, voice, or router features of its own. Its listing notes potential rental-fee savings while acknowledging some providers have already trimmed those charges.
- Docsis 3.1 supporting cable plans up to 1 Gbps
- Certified for Xfinity, Spectrum, and Cox
- Potential modem rental-fee savings
- Simple coax-and-Ethernet hookup
- Coaxial cable only — not for fiber or DSL
- Provides only one Ethernet port and no WiFi
9 Netgear Nighthawk Docsis 3.1 Mid/high-Split Cable Modem
The CM3000 is a mid/high-split Docsis 3.1 cable modem rated for plans up to 2.5Gbps download and 1Gbps upload, and it's the highest-priced model in this comparison. As with the other CM3000 variant, its top speeds require mid/high-split service, and it leans on a separate WiFi 6E, WiFi 7, or Orbi router for the WiFi side. The steep price relative to lower-ranked modems explains its placement despite strong specs.
- Mid/high-split Docsis 3.1 rated up to 2.5Gbps download
- Up to 1Gbps upload with roughly 10x faster uploads
- Engineered for the fastest Docsis 3.1 cable tiers
- Pairs with WiFi 6E, WiFi 7, or Orbi systems
- Highest-priced model in this comparison
- Requires a separate WiFi router for any wireless coverage
10 Netgear Nighthawk Cable Modem CM1200
The Nighthawk CM1200 is a Docsis 3.1 modem-only unit supporting plans up to 1 Gbps, built with 32x8 channel bonding and Ofdm 2x2. Its standout is connectivity: four Gigabit Ethernet ports for wiring up computers, a router, a printer, and game consoles directly. Netgear pitches it as a way to recoup yearly modem-rental fees, though at about 2.23 lb it's heavier than most single-unit modems here.
- Docsis 3.1 with 32x8 channel bonding and Ofdm 2x2
- Four Gigabit Ethernet ports for wired devices
- Replaces a rented modem to cut yearly equipment fees
- Works with any separate WiFi router
- Heavier than most at about 2.23 lb
- No built-in WiFi, so a separate router is required
8 Things to Consider Before Buying Modems
Before comparing spec sheets, pin down one thing: do you want a modem only, a modem-router combo, or a full mesh system? That single choice rules out most of the list for you. From there, the specs buyers weigh most in this category are Docsis generation, rated plan speed, Ethernet port count and speed, and provider compatibility. Our ranking already balances these against price, so a higher placement reflects a stronger overall fit for the money.
Our Final Verdict
The Netgear Nighthawk Modem Router Combo (CAX30) takes the top spot for the simple reason that it does two jobs at once — Docsis 3.1 modem and WiFi 6 router in one box, with four Gigabit Ethernet ports and coverage up to 2,000 sq. ft. For shoppers who just want out of a rental and already own a router, the Netgear Cable Modem Docsis 3.0 (CM500) is the value choice and the lightest lift. On the premium end, the Netgear Nighthawk Docsis 3.1 Mid/high-Split Cable Modem (CM3000) chases the fastest cable tiers with up to 2.5Gbps down and 1Gbps up, though it leans on you to supply a capable router. Pick by the job, not the price tag.
Frequently Asked Questions
Do I need a separate router with these modems?
It depends on the model. The Netgear Nighthawk Modem Router Combo (CAX30) has WiFi built in, so it needs nothing else. The Arris SURFboard SB8200, the Netgear CM500 and CM1200, and both Hitron Coda modems are modem-only and require a separate WiFi router. The TP-Link Deco X55 is a mesh WiFi system rather than a cable modem.
Will these work with Xfinity, Spectrum, or Cox?
Most of the lineup lists compatibility with major cable providers including Xfinity, Spectrum, and Cox. The two Hitron Coda modems add a key restriction in their listings: they work exclusively with cable (docsis) internet, and the CODA56 specifically rules out fiber, DSL, satellite, and fixed wireless. Always confirm your specific plan and service type with your provider.
What's the difference between Docsis 3.0 and Docsis 3.1 here?
Docsis 3.1 is the newer standard and appears on most models, including the CAX30, the SB8200, the CM3000 pair, and the CM1200. The Netgear CM500 uses Docsis 3.0 with 16x4 channel bonding and supports plans up to 400 Mbps. If your plan is faster than that or you expect to upgrade, a Docsis 3.1 model gives more headroom.
Which modem is best for the fastest cable plans?
The mid/high-split Nighthawk modems are built for it. The Netgear Nighthawk Docsis 3.1 Mid/high-Split Cable Modem (CM3000) supports plans up to 2.5Gbps download and 1Gbps upload, and its listing notes those top tiers can only be accessed with mid/high-split. You'll still need to pair it with a capable WiFi 6E, WiFi 7, or Orbi router.
Can buying my own modem save money on rental fees?
Yes, that's a recurring point in the data. The Netgear CM500 and CM1200 each tout yearly equipment-rental savings, and the Arris SB8200 frames ownership as avoiding monthly equipment charges. The Hitron Coda listing notes some providers have reduced or eliminated rental fees, so check your current bill to confirm the math.
How many wired devices can I connect?
Port counts differ. The Netgear Nighthawk Modem Router Combo (CAX30) and the CM1200 each list four 1-Gigabit Ethernet ports, the Arris SB8200 has two, and the Hitron Coda Docsis 3.1 provides a single Ethernet port. If you wire up consoles, computers, or storage, count ports first — or pair a modem-only box with a router that adds more.
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