Learning Modems & Gateways for Faster, More Reliable Internet

Build a Better Internet Edge

A modem connects your home to the ISP network; a router creates your local network; a gateway combines both in one device. Explore Newegg’s full selection of modems & gateways to match your plan speed, coverage needs, and budget.

Popular Device Types

Cable Modems (DOCSIS): Pick a model aligned to your plan—DOCSIS 3.1 for gigabit tiers and future upgrades. See DOCSIS 3.1 cable modems.

Modem-Router Combos: All-in-one simplicity with fewer cables and a single admin app. Compare modem router combos when you want quick setup and integrated Wi-Fi.

DSL Modems: For VDSL/ADSL lines, choose the profile supported by your provider. Browse DSL modem options.

Key Specs to Compare

Look for multi-gig (2.5GbE) WAN/LAN for faster ISP tiers, link aggregation on cable modems, voice/eMTA ports for telephony, and Wi-Fi 6/7 radios on gateways. If you need wider coverage or wired backhaul, pair a standalone modem with a wireless router or a whole-home mesh Wi-Fi system.

Performance Tip: Use quality cabling and wired backhaul whenever possible—start with Cat6/Cat6a Ethernet cables and a compact multi-gig switch for stable speeds across rooms.

How to Choose the Right Modem or Gateway

Confirm your ISP’s approved models and plan speed, then pick hardware that meets or exceeds it (e.g., DOCSIS 3.1 for gigabit). Decide between a flexible modem + separate router (best for upgrades) or an easy all-in-one gateway. For VoIP home phone, select a voice-enabled modem or add an ATA (analog telephone adapter). Power users and gamers may prefer dedicated routers—look for multi-gig routers with strong CPUs, QoS, and WPA3.

Accessories & Tools

Essential Accessories

Cat6/Cat6a Ethernet Cables – Support gigabit and multi-gig.
LAN & PoE Switches – Wire rooms and power access points.
Wireless Access Points – Add coverage for large or multi-story spaces.
UPS Battery Backup – Keep your modem/gateway online during outages.

Newegg Networking Tools & Promotions

Deals & Tools: Looking to save or plan a full setup? Browse current Newegg networking deals for limited-time discounts, or explore category filters to customize your wired network with compatible switches, firewalls, NICs, and more.

FAQs

What’s the difference between a modem, a router, and a gateway?

A modem links you to the ISP; a router creates your local network and manages Wi-Fi; a gateway is a modem and router in one device.

Do I need DOCSIS 3.1 for gigabit plans?

Yes. DOCSIS 3.1 is recommended for gigabit service and provides more headroom for future speed upgrades.

Combo vs. separate devices—which is better?

Combos are simple and compact. A separate modem + router gives more control, easier upgrades, and typically better performance at the high end.

How do I avoid double NAT with a gateway?

Enable bridge mode on the gateway (or disable the router function) and let your standalone router handle DHCP, NAT, and Wi-Fi.

Bestselling Modems / Gateways Reviews:

Jason J.

10/26/2024 2:36:51 PM

Best modern I've used

“ integrates easily with my TP Link WiFi 7 router ”

NETGEAR Nighthawk Mid/high-Split Multi-Gig 2.5Gbps Cable Modem | CM3000

Michael P.

2/10/2023 10:54:41 AM

There's xFinity modems...... and then there's this!

“ This one is great, and also includes the router/WiFi functionality to get the house/office online ”

Motorola MG8702 AC3200 Dual-Band DOCSIS 3.1 Gigabit Cable Modem Router

Cookie791

9/7/2022 2:34:13 PM

Works as advertised

“ As it says in the item description, this is a Arris SURFboard Sb6190 modem. ”

ARRIS SURFboard SB6190 DOCSIS 3.0 Gigabit+ Cable Modem

Keith M.

11/3/2021 4:13:52 PM

2018-2021

“ Went through two separate routers and currently using Ubiquiti networks. ”

NETGEAR DOCSIS 3.1 Gigabit Cable Modem. Max download speeds of 6.0 Gbps, For XFINITY by Comcast, Spectrum, and Cox. Compatible with Gig-Speed from Xfinity (CM1000)

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