Choosing the right cable modem can save money, speed up your home network, and simplify your setup. Below is a curated selection of reliable DOCSIS 3.0 and 3.1 modems and combos that work with major providers like Xfinity, Spectrum, and Cox. Each option emphasizes solid performance, easy activation, and compatibility with current and upcoming speeds. Use the buying guide to compare features such as DOCSIS standard, Ethernet ports, and whether a separate router is required.
| Product | Key Benefit | Max Common Speed |
|---|---|---|
| ARRIS SURFboard SB8200 | DOCSIS 3.1 with multi‑gig capability | Up to 2 Gbps |
| NETGEAR CM500 | Affordable DOCSIS 3.0 modem for mid‑tier plans | Up to 400 Mbps |
| NETGEAR Nighthawk CAX30 | DOCSIS 3.1 modem + WiFi 6 router in one | Up to 2.7 Gbps total wireless |
| Hitron CODA56 | DOCSIS 3.1 modem with high‑speed wired connection | Up to 2.5 Gbps |
| Hitron CODA56 DOCSIS 3.1 (No WiFi) | Modem‑only option for high speeds | Up to 2.5 Gbps |
ARRIS SURFboard SB8200 DOCSIS 3.1 Modem
The ARRIS SB8200 is a DOCSIS 3.1 modem designed for cable plans up to 2 Gbps. Its dual 1 Gbps Ethernet ports support link aggregation and high‑speed gaming, streaming, and downloads. This modem helps eliminate rental fees by taking ownership, though you should verify compatibility with your provider and plan before activation. A compact, modern design features discrete LED indicators for power, upstream, downstream, and online status.
NETGEAR CM500 Cable Modem
The NETGEAR CM500 is a DOCSIS 3.0 modem optimized for mid‑tier plans. It can help lower monthly rental costs by replacing a provided device. Compatibility extends to major providers, with suitable speeds for Xfinity up to 200 Mbps and Cox up to 150 Mbps, and it works with any router you already own by connecting your wireless router to its Ethernet port. This makes it a versatile option for users not needing multi‑gig speeds.
NETGEAR Nighthawk Modem Router Combo CAX30
The NETGEAR Nighthawk CAX30 combines a DOCSIS 3.1 modem with a WiFi 6 router (AX2700). It provides robust coverage for up to about 2,000 sq. ft. and supports up to 25 devices simultaneously. With four 1 Gbps Ethernet ports (and possible port aggregation) plus a USB 3.0 port, it suits households seeking a single device for both modem and router capabilities, though it is not compatible with certain legacy providers and bundled voice services. Ideal for homes upgrading to WiFi 6 performance.
NETGEAR Nighthawk CM1200 Modem
The NETGEAR CM1200 is a DOCSIS 3.1 modem designed for providers offering up to 2 Gbps speeds. It features four 1 Gig Ethernet ports suitable for multiple wired devices and supports up to 2,500 sq. ft. of coverage when paired with an appropriate router. It’s compatible with major cable providers like Xfinity, Spectrum, and Cox, but activation depends on provider compatibility and plan specs. A solid choice for users seeking high‑speed, future‑proof performance with a separate router or a router‑combo solution.
Hitron CODA DOCSIS 3.1 Cable Modem Only
The Hitron CODA56 DOCSIS 3.1 modem offers high‑speed performance (up to 2.5 Gbps) with no built‑in WiFi. It is compatible with major cable providers like Xfinity, Spectrum, and Cox, but activation requires a separate WiFi router. It’s designed for users who want a dedicated modem with a powerful wired backbone and the flexibility to choose a router that matches their network needs. Verify plan speeds and provider approval prior to purchase.
Hitron CODA56 DOCSIS 3.1 Modem Only (2.5 Gbps)
This Hitron CODA56 DOCSIS 3.1 modem provides a high‑speed wired connection with a single Ethernet port and no built‑in WiFi. It supports plans up to about 2.5 Gbps and is certified for use with providers such as Xfinity, Spectrum, and Cox. It requires a separate router to broadcast wireless signals. As with other modem‑only options, confirm compatibility with your service tier and location before purchasing.
Buying Guide: Key Purchase Considerations
- DOCSIS standard and speed: For future‑proof performance, choose DOCSIS 3.1 modems (and combos) when your plan exceeds 1–2 Gbps. DOCSIS 3.0 remains suitable for basic to mid‑tier plans.
- Modem vs. modem‑router: Decide whether you want a dedicated modem (modem only) or a modem with built‑in router capabilities. Modem‑router combos simplify setup but limit router upgrade options.
- Provider compatibility: Confirm your cable provider and plan speeds are supported by the modem. Some models are not compatible with certain providers or services (e.g., bundled voice).
- Number of Ethernet ports: If you have multiple wired devices, look for 4× Gigabit Ethernet ports or the ability to port‑aggregate. USB 3.0 is an added convenience for storage or devices.
- WiFi needs: If you require strong wireless coverage, consider a WiFi 6 (802.11ax) router or a modem‑router combo with WiFi 6 built in, especially for larger homes.
- Activation and support: Some providers require activation via their portal or customer support. Keep your account details handy for seamless setup.
- Future expansion: If you anticipate faster speeds or more connected devices, pick a DOCSIS 3.1 option even if your current plan is below 1 Gbps.
When selecting a modem, balance upfront cost with long‑term savings on rental fees. Verify provider compatibility and plan limits for the model you choose. For households prioritizing wired performance, modem‑only models paired with a robust router can offer the best combination of speed and flexibility.