Your internet provider will happily rent you a modem for a monthly fee, and that fee never stops. Buying your own does the same job, usually better, and it pays for itself faster than most people expect. But the box only works if its DOCSIS version and rated speed match your plan, and if your provider approves the model. We analyzed thousands of verified buyer reviews, recent sales data, and expert evaluations to find six devices that cover the modems and the routers you pair them with.
Short on time? These three cover most buyers - our top-graded pick, the most affordable option, and the top choice if you specifically need a standalone modem.
Our Best Overall pick in this comparison - though it's worth noting upfront that it's a WiFi router, not a modem. Genuine WiFi 7 with 6.5 Gbps of combined bandwidth, dual 2.5G ports and VPN support that testers found rivals TP-Link's pricier flagships.
WiFi 6E AXE5400 · tri-band w/ 6 GHz · router only, no modem
A 2025 PCMag Editors' Choice, though note it's a WiFi router, not a modem. A dedicated 6 GHz band, 5.4 Gbps of combined bandwidth and a 2.5G WAN port for pairing with your own modem.
Our Best Affordable pick - and, again, a router rather than a modem. Tom's Hardware calls it dual-band WiFi 7 for less than $100, and testers measured 993 Mbps average at close range.
Our Best Standalone Modem pick: Tom's Guide named it the best cable modem on a budget, with a 2.5 Gbps port and DOCSIS 3.1 channel bonding for multi-gig cable plans - no WiFi or router built in, by design.
The only true all-in-one here: a DOCSIS 3.1 cable modem and AX2700 WiFi 6 router in one box, for cable subscribers who want a single device instead of pairing a separate modem and router.
A second true modem-only option: mid/high-split DOCSIS 3.1 with a 2.5 Gbps port, built for cable plans approaching 2.5 Gbps down and 1 Gbps up. No WiFi at all - it's designed to pair with your own router.
Understand the category before you buy - what the science actually says, and which specs matter.
Every modem promises to connect your home, but the version it supports and the speed it is rated for decide whether it keeps up with your plan or quietly throttles it. Here is how a modem works, why buying beats renting once you look at the math, and the specs actually worth comparing.
What does a cable modem actually do?
A cable modem is the translator between the coaxial line coming into your home and the network inside it. The signal arrives as a cable-TV-style frequency, and the modem converts it into the internet data your devices understand. That is the whole job, and a modem by itself creates no WiFi at all.
It brings the internet signal into your home over the coax line.
It converts that signal into standard Ethernet data.
It hands that data off through one or more Ethernet ports.
For WiFi you need a separate router, or a combo unit that packs both a modem and a router into one box. In this lineup, the Hitron CODA56 and the NETGEAR Nighthawk CM3000 are modems only, so each needs a router beside it, while the NETGEAR Nighthawk CAX30 packs a modem and router into one box. The TP-Link Archer models here, the BE6500, the AXE5400, and the BE3600, are the routers that create the WiFi once a modem feeds them the signal.
Why buying your own modem beats renting one
This is the part most shoppers never run the numbers on. Providers like Xfinity, Spectrum, and Cox typically fold a modem rental charge into your bill every month, and that charge outlives the equipment. A modem you buy once is yours, and after about a year of use the purchase has usually covered its own cost against what you would have paid in rental fees. After that, it keeps saving you money for as long as you own it.
The catch is that the savings only show up if the modem fits your plan. Two specs decide that. First, match the DOCSIS version: DOCSIS 3.1 is what you want for gigabit and future plans, while the older DOCSIS 3.0 standard is fine only for slower tiers. Every modem in this lineup, the CODA56, the CM3000, and the CAX30, is DOCSIS 3.1. Second, match the rated speed to the plan you pay for. The CAX30's built-in modem is rated up to about 2 Gbps, while the CODA56 and CM3000 reach up to 2.5 Gbps, so there is no point paying for a 2.5 Gbps modem on a plan that tops out far below it. Then confirm your provider approves the exact model, because an unapproved modem will not activate no matter how capable it is.
Which specs actually matter?
A few features decide which one fits you:
DOCSIS version: This is the compatibility lever. Choose DOCSIS 3.1 for gigabit and future-proofing; DOCSIS 3.0 suits only slower plans. Every modem here is 3.1.
Rated plan speed: Match the modem's ceiling to what you pay for. The CAX30 is rated up to about 2 Gbps, the CODA56 and CM3000 up to 2.5 Gbps.
Channel bonding: More bonded channels means more capacity. The CODA56 and CM3000 both run 32x8 channel bonding, and the CM3000 adds mid/high-split support for faster upload on plans that offer it.
Ports: Check the Ethernet speed. The CAX30 has four Gigabit LAN ports on its router side, the CODA56 has a single 2.5 Gbps port, and the CM3000 pairs a 2.5G LAN with two 1G LAN ports.
Provider compatibility: Confirm approval before buying. The CODA56, CM3000 and CAX30 all list Xfinity, Spectrum, Cox, and most cable providers, though the CM3000 is not for Xfinity Voice, and none work on fiber or DSL.
Modem-only vs combo: Decide whether you want a separate router for flexibility or a combo box for simplicity. The CODA56 and CM3000 are modem-only, the CAX30 packs both into one box, and the three TP-Link Archer routers here are WiFi-only, so pair one of them with a modem of your choice.
How we grade products
Graded Picks rankings are aggregated from several independent signals: verified buyer ratings and the size of the review base for credibility, recent monthly purchase volume for relevance, assessments from trusted networking publications, and how each product places in leading category lineups. For modems we weigh:
DOCSIS version and channel bonding
Rated speed against common plan tiers
Port speed and link aggregation
Provider approval and compatibility breadth
Whether it is modem-only or a combo unit
Reliability and heat management over time
Overall value against ongoing rental fees
Compatibility note: Before you buy, check your provider's approved-device list for the exact model and confirm it matches your plan speed, because a modem that is not on the list will not activate. Cable modems work on cable service only, not fiber or DSL, and if you want WiFi remember that a modem needs a router beside it or a combo unit to create the network.
In-Depth Reviews
Everything we learned from buyer reviews and expert testing, product by product.
TP-Link BE400
Best Overall36% OFF
1. TP-Link BE6500 WiFi 7 Router (Archer BE400)
4.9
The Archer BE400 earns our Best Overall pick in this comparison, though - like half of this lineup - it's a WiFi router with no modem built in, so you'll need your own cable, fiber or DSL modem to pair it with. Judged as a router, it earns the top spot on the strength of genuine WiFi 7 muscle at a mid-range price. Reviewers measured fast, stable 5 GHz throughput comparable to TP-Link's much more expensive Archer BE800, driven by multi-link operation, 4K-QAM, six streams and a quad-core CPU. You get a 2.5G WAN plus a 2.5G LAN port, USB 3.0 file sharing, EasyMesh expandability, and unusually strong VPN support with WireGuard plus native NordVPN and Surfshark modes. The Tether app earns consistent praise for its clean interface, per-device parental controls and speed limits. Two honest caveats from testing: TP-Link itself recommends keeping multi-link operation disabled on this model due to conflicts with some Intel BE200 laptop adapters, and its 2.4 GHz band was the slowest at long range among TP-Link routers tested.
Device typeWiFi router only (no modem - pair with your own)
StandardWiFi 7 (802.11be), dual-band
Rated speedBE6500 (up to 6.5 Gbps combined)
Ports1x 2.5G WAN, 1x 2.5G LAN, 3x 1G LAN, USB 3.0
Coverage / compatibilityUp to 2,400 sq ft / 90 devices
5 GHz speeds testers compare to flagships costing far more
Dual 2.5G ports (WAN + LAN) plus USB 3.0
Excellent Tether app with per-device parental controls
Strong VPN support: WireGuard, NordVPN, Surfshark
Genuine WiFi 7 features at a mid-range price
Cons
This is a router, not a modem - you'll need a separate modem to get online
TP-Link advises disabling multi-link operation due to Intel BE200 adapter conflicts
2.4 GHz band is comparatively weak at long range
Who is it for?
Households that already have a modem and want flagship-grade WiFi 7 speed and top-tier app controls.
Who is it not for?
Anyone who wants a single box that includes the modem - the standalone modems in this comparison have no WiFi built in, so pair this with the Hitron or NETGEAR CM3000 modem elsewhere in this comparison, or consider the NETGEAR CAX30 combo instead.
One thing to know before anything else: the Archer AXE75 is a WiFi router, not a modem - it has no cable modem hardware inside, so it needs to plug into a separate modem to get online. Judged as a router, though, it's one of the strongest all-around performers here and a 2025 PCMag Editors' Choice with reviews from PC Gamer, RTINGS and Dong Knows Tech behind it. It's also the only budget-friendly path in this comparison to a dedicated 6 GHz band - uncongested, near-interference-free spectrum that PC Gamer found delivers particularly fast connections up close, making it their budget gaming recommendation. A 1.7 GHz quad-core CPU, six beamforming antennas, a 2.5G WAN port, USB 3.0, OneMesh support and TP-Link's VPN and HomeShield features round out a spec sheet that undercuts many newer WiFi 7 routers. Know the physics before buying: 6 GHz excels in the same room but fades through walls, and TP-Link rates overall coverage at a modest 2,000 sq ft.
Device typeWiFi router only (no modem - pair with your own)
2025 PCMag Editors' Choice with broad expert coverage
Dedicated 6 GHz band at a budget-friendly price
PC Gamer's budget gaming pick - very fast 5 GHz and 6 GHz up close
Six beamforming antennas plus a 2.5G WAN port
OneMesh support plus USB 3.0 file sharing
Cons
This is a router, not a modem - you'll need a separate modem to get online
6 GHz range is short and drops through walls
WiFi 6E only, so no WiFi 7 MLO or 320 MHz channels
Who is it for?
Gamers and streamers who already have (or plan to add) a separate modem and want a clean 6 GHz band for same-room speed and low latency.
Who is it not for?
Anyone who wants a single box that gets them online out of the box - the modem-only units here (Hitron, NETGEAR CM3000) have no WiFi built in, so pair this with one of them, or consider the NETGEAR CAX30 combo elsewhere in this comparison if you'd rather have modem and router in one box.
The Archer BE230 is our Best Affordable pick and, like half of this lineup, a WiFi router rather than a modem - pair it with the Hitron or NETGEAR modem elsewhere in this comparison, or the NETGEAR CAX30 combo, or your ISP's own modem, to get online. As a router it's the value story here: Tom's Hardware headlined its review 'dual-band Wi-Fi 7 for less than $100,' and the performance is real - TechGearLab measured a very impressive 993 Mbps average on 5 GHz at close range, meaning gigabit internet plans get fully used. Its 2.0 GHz quad-core CPU, two 2.5G ports, USB 3.0, VPN support and EasyMesh match its pricier sibling, the Archer BE400, at a lower cost; what you give up is combined bandwidth (3.6 vs 6.5 Gbps) and some rated coverage. The trade-offs experts flag: signal strength falls off notably through walls, and like every dual-band WiFi 7 router, it lacks the 6 GHz band.
Device typeWiFi router only (no modem - pair with your own)
Tested at 993 Mbps average on 5 GHz up close - saturates gigabit plans
Two 2.5G ports plus USB 3.0 at a budget price
Same quad-core CPU, VPN and EasyMesh features as its pricier sibling
Cons
This is a router, not a modem - you'll need a separate modem to get online
Signal weakens noticeably through walls and at long range
No 6 GHz band, so you don't get the full WiFi 7 experience
Who is it for?
Budget buyers who already have a modem and want WiFi 7 and multi-gig ports for the price of a mid-tier WiFi 6 router.
Who is it not for?
Anyone who wants a single box - pair this router with the Hitron or NETGEAR CM3000 modem elsewhere in this comparison, or consider the NETGEAR CAX30 combo instead.
The CODA56 earns our Best Standalone Modem pick: a genuine cable modem with no WiFi and no router functions, and Tom's Guide named it the Best Cable Modem on a Budget. DOCSIS 3.1 with 32x8 channel bonding and 2x2 OFDM channels supports cable plans up to 2.5 Gbps, and reviewers measured near-2.5-Gbps real-world throughput through its single 2.5 Gbps Ethernet port when paired with a capable router. It's certified for Xfinity, Spectrum, Cox, Cable One and several smaller cable ISPs, and Hitron rates it for low power draw versus older DOCSIS 3.1 modems. The trade-off is exactly what you'd expect from a modem-only device: you must supply your own WiFi router (any of the routers elsewhere in this comparison would pair with it), and like every cable modem, it's incompatible with fiber, DSL or satellite internet.
Device typeCable modem only (no WiFi/router)
StandardDOCSIS 3.1, 32x8 channel bonding
Rated speedUp to 2.5 Gbps (with a compatible plan & router)
The CAX30 is the only product in this comparison that replaces two boxes at once: its DOCSIS 3.1 cable modem handles plans pushing toward 2 Gbps on Xfinity, Spectrum, Cox and other cable ISPs, while the AX2700 WiFi 6 router side covers about 2,000 sq ft and 25 devices. The money math is the headline - dropping a monthly ISP equipment rental fee means the CAX30 can pay for itself within a couple of years, and everything after that is savings. Buyers consistently praise the 10-15 minute app-guided setup and day-to-day reliability. The compromises: the Nighthawk app is easy but shallow on advanced controls, four gigabit LAN ports fill up fast in wired-heavy homes, and it is emphatically cable-only - no fiber, DSL or bundled voice plans.
Device typeDOCSIS 3.1 modem + WiFi 6 router combo
StandardDOCSIS 3.1 modem + WiFi 6 (802.11ax)
Rated speedAX2700 WiFi + cable plans up to ~2 Gbps
Ports4x 1G LAN, USB 3.0, coax (cable input)
Coverage / compatibilityXfinity, Spectrum, Cox; up to 2,000 sq ft / 25 devices
Modem + router in one box - no separate device to buy or rent
DOCSIS 3.1 headroom for cable plans approaching 2 Gbps
10-15 minute guided setup via the Nighthawk app
Works with Xfinity, Spectrum, Cox and most major cable ISPs
Cons
Cable-only: incompatible with fiber, DSL and voice-bundled plans
Nighthawk app lacks advanced traffic and network controls
WiFi 6 (not 6E or 7) and only gigabit LAN ports
Who is it for?
Cable-internet households who want one box that's both the modem and the router, without paying a monthly ISP equipment rental fee.
Who is it not for?
Fiber and DSL subscribers (it won't work at all), and anyone who wants to upgrade router and modem on separate schedules - a standalone modem plus router is more flexible.
Like the Hitron above, the CM3000 is a genuine cable modem with zero WiFi built in - NETGEAR designed it purely to be paired with a separate router. Its mid/high-split DOCSIS 3.1 architecture and 32x8 channel bonding target the newest, fastest cable tiers: up to 2.5 Gbps down and 1 Gbps up, delivered through one 2.5 Gbps Ethernet port plus two standard gigabit ports for directly wired devices. Owner feedback consistently describes it as a 'set it and forget it' modem that handles heavy multi-device households - streaming, gaming and work-from-home traffic simultaneously - without slowdowns, and setup is described as straightforward. It's certified for Xfinity, Spectrum and Cox, though it does not support Xfinity Voice plans. The trade-off: it costs more than basic modems, and you're on the hook for pairing it with a router of your choice - any of the WiFi routers in this comparison would work.
The stars you see are the Graded Picks cumulative score, not a single retailer's average. It blends verified buyer reviews aggregated across major retailers, assessments from professional reviewers and expert testers, and how prominently the product features in leading category lineups.
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