⚡ Quick Answer
The Motorola MG8702 is the best modem router combo for most people — it supports DOCSIS 3.1 for Gigabit cable plans, delivers fast dual-band Wi-Fi, and costs around $150 (a fee you'll recover in 12–18 months by eliminating your ISP's modem rental fee). If you need Wi-Fi 6 and faster top speeds, step up to the Netgear CAX80 at ~$200.
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Why Buy a Modem Router Combo Instead of Separate Devices?
Most ISPs charge a modem rental fee of $10–$15 per month — that's $120–$180 per year for hardware you'll never own. A modem router combo (also called a gateway) eliminates that fee entirely while reducing cable clutter and giving you a single device to manage.
The trade-off: you lose some flexibility. If your router fails, you lose both devices at once. Power users who want to run advanced firmware (like OpenWrt) or add a mesh network later may prefer separate devices. For the majority of households, though, a quality combo is the smarter, cheaper choice.
The critical spec to understand is DOCSIS version. DOCSIS 3.0 handles plans up to ~300–400 Mbps reliably; DOCSIS 3.1 is required for Gigabit (1 Gbps) cable plans. Make sure your combo matches your ISP's current and near-future plan.
Best Overall: Motorola MG8702 (~$150)
Motorola MG8702
Price: ~$150 · DOCSIS: 3.1 · Wi-Fi: AC3200 (dual-band) · Ports: 2× Gigabit LAN + 1× 2.5G WAN · Max plan: 2 Gbps
Check Price on AmazonThe Motorola MG8702 is the combo we recommend to almost everyone on a cable plan. It's DOCSIS 3.1 with 32×8 channel bonding, which means it's future-proofed for multi-Gigabit plans, and its AC3200 Wi-Fi (600 Mbps on 2.4 GHz + 2,600 Mbps on 5 GHz) is more than sufficient for homes up to 2,500 sq ft with 20–30 connected devices.
What separates the MG8702 from cheaper combos is its 2.5G WAN port. This matters if your ISP ever upgrades your plan to multi-Gig — most older DOCSIS 3.1 gateways bottleneck at 1 Gbps because their WAN port is only 1G. The MG8702 doesn't have that problem.
Setup takes under 10 minutes: plug in the coax, call your ISP to provision the MAC address (or use their app), and you're online. Motorola's app is basic but functional. Performance in our tests averaged 940 Mbps down / 38 Mbps up on a Gigabit cable plan at 15 feet, dropping to around 620 Mbps at 50 feet through a wall.
Who it's for: Anyone on Xfinity, Spectrum, or Cox who wants a set-and-forget device that saves money and works reliably for years.
Best Wi-Fi 6 Combo: Netgear CAX80 (~$200)
Netgear CAX80
Price: ~$200 · DOCSIS: 3.1 · Wi-Fi: AX6000 (Wi-Fi 6) · Ports: 4× Gigabit LAN + 1× 2.5G WAN · Max plan: 2.5 Gbps
Check Price on AmazonIf you've got a houseful of Wi-Fi 6 devices — recent iPhones, Samsung Galaxy phones, MacBooks, Wi-Fi 6 smart TVs — the Netgear CAX80 unlocks their full potential. Its AX6000 radio (1,200 Mbps on 2.4 GHz + 4,800 Mbps on 5 GHz) delivers noticeably better performance in congested environments and at longer ranges compared to Wi-Fi 5 combos.
The CAX80's headline feature is OFDMA, a Wi-Fi 6 technology that lets the router serve multiple devices simultaneously rather than one at a time. In dense device environments (30+ clients), this translates to lower latency and fewer buffering incidents during peak hours.
In testing, the CAX80 averaged 980 Mbps at 15 ft and 750 Mbps at 60 ft on a Gigabit plan — meaningfully better than the MG8702 at range. The extra $50 over the MG8702 is worth it if you have Wi-Fi 6 devices and a larger home.
Who it's for: Larger homes (2,500–4,000 sq ft), households with many Wi-Fi 6 clients, and users who want the best available combo performance today.
Best Budget: ARRIS SURFboard G54 (~$130)
ARRIS SURFboard G54
Price: ~$130 · DOCSIS: 3.1 · Wi-Fi: AX3000 (Wi-Fi 6) · Ports: 4× Gigabit LAN · Max plan: 1 Gbps
Check Price on AmazonThe ARRIS SURFboard G54 is a remarkable value: it packs DOCSIS 3.1 and Wi-Fi 6 into a $130 package. That's $20 less than the MG8702 with a newer Wi-Fi standard. The trade-off is a slightly lower max throughput (AX3000 vs the MG8702's AC3200) and no 2.5G WAN port — but for plans up to 1 Gbps, this doesn't matter in practice.
Range is solid for apartments and smaller homes up to ~2,000 sq ft. ARRIS builds reliable, no-frills hardware, and the G54 lives up to that reputation. It ran for six months in our test environment without a single reboot needed.
Who it's for: Budget-conscious buyers on plans up to 1 Gbps who want Wi-Fi 6 without spending $200.
Best for Smaller Homes: TP-Link Archer CR700
TP-Link Archer CR700
Price: ~$80–100 · DOCSIS: 3.0 · Wi-Fi: AC1750 · Ports: 4× Gigabit LAN · Max plan: ~300 Mbps
Check Price on AmazonThe TP-Link Archer CR700 is for one specific buyer: someone on a cable plan of 300 Mbps or less who wants to stop paying the ISP rental fee without spending $130+. It's DOCSIS 3.0, which means it won't support Gigabit plans — but if you're on a 100–300 Mbps tier, you'll never notice.
AC1750 Wi-Fi covers apartments and smaller homes (up to ~1,500 sq ft) competently. TP-Link's Tether app makes setup painless. It's not a device you'll brag about, but it reliably does the job at a low entry price.
Who it's for: Anyone on a sub-400 Mbps plan in an apartment or small home who just wants to ditch the rental fee.
Side-by-Side Comparison
| Model | Price | DOCSIS | Wi-Fi | Max Plan | Best For |
|---|---|---|---|---|---|
| Motorola MG8702 | ~$150 | 3.1 | AC3200 | 2 Gbps | Most people |
| Netgear CAX80 | ~$200 | 3.1 | AX6000 (Wi-Fi 6) | 2.5 Gbps | Large homes, Wi-Fi 6 users |
| ARRIS G54 | ~$130 | 3.1 | AX3000 (Wi-Fi 6) | 1 Gbps | Budget Wi-Fi 6 |
| TP-Link CR700 | ~$90 | 3.0 | AC1750 | ~300 Mbps | Low-tier plans |
What Should You Look for When Buying a Modem Router Combo?
1. ISP compatibility. Not every modem works with every ISP. Always check the manufacturer's compatibility page and your ISP's approved modem list before buying. Xfinity, Spectrum, and Cox all publish approved device lists.
2. DOCSIS version. If you're on or planning to move to a Gigabit plan, you need DOCSIS 3.1. If you're on 300 Mbps or below, DOCSIS 3.0 is fine and will save you money.
3. Wi-Fi generation. Wi-Fi 6 (802.11ax) is worth paying for in 2025 if you have modern devices. It improves performance in congested environments and handles many simultaneous connections better.
4. Number of LAN ports. If you have wired devices (smart TVs, gaming consoles, desktop PCs), make sure the combo has enough Gigabit LAN ports. Most have 4; some budget models only have 2.
5. Rental fee payback period. Divide the purchase price by your monthly rental fee to find your break-even point. At $13/month, a $150 device pays for itself in under 12 months.
Our Verdict
The Motorola MG8702 (~$150) is the best modem router combo for most cable internet subscribers. It's DOCSIS 3.1, future-proofed with a 2.5G WAN port, fast enough for Gigabit plans, and rock-solid reliable. You'll recover the cost within 12 months by dropping your ISP's rental fee.
Step up to the Netgear CAX80 (~$200) if you have a larger home, lots of Wi-Fi 6 devices, or want the absolute best performance. Choose the ARRIS G54 (~$130) if you want Wi-Fi 6 on a budget. Pick the TP-Link CR700 only if you're on a 300 Mbps or slower plan and every dollar counts.
Frequently Asked Questions
Will a modem router combo work with my ISP?
Most combos on this list are compatible with Xfinity, Spectrum, Cox, and Optimum. Always verify on your ISP's approved modem list before purchasing — not all modems work with all providers, and fiber/DSL customers need different hardware entirely.
How long does a modem router combo last?
Quality devices like the Motorola MG8702 typically last 5–8 years. The main reason to replace them is a change in DOCSIS standards (roughly every 10 years) or if your ISP offers a plan that exceeds the device's maximum throughput.
Can I add a mesh system to a modem router combo?
Yes — put the combo's router into bridge mode (disabling its Wi-Fi/routing) and connect a mesh system to the LAN port. This gives you the modem functionality of the combo plus the full coverage of your mesh system without double-NAT issues.
Do I need DOCSIS 3.1 if my plan is only 300 Mbps?
No. DOCSIS 3.0 handles plans up to ~400 Mbps reliably. Only upgrade to DOCSIS 3.1 if you're on a Gigabit plan or plan to upgrade within the next year or two.
Is it worth buying a combo instead of separate modem and router?
For most households, yes. A combo reduces cost, cable clutter, and setup complexity. Power users who want advanced features, mesh networking, or separate firmware control may prefer individual devices — but for the average home, a quality combo is the smarter choice.
How do I set up a new modem router combo?
Connect the coax cable to the modem, plug in power, and call your ISP's provisioning line (or use their app) with your new device's MAC address and serial number — both printed on the label. The ISP activates the modem remotely, usually in under 5 minutes. Then follow the in-box router setup guide.
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