In this guide today, we are here with our in-depth review of the best router for 400 mbps. There are plenty of choices with multiple websites and therefore difficult to choose the best one. We recommend to read the guide and choose the one that suits your need as we review products based on the various options, features, price, quality and many more . To avoid this dilemma, we recommend to read this guide and review. It gives you insider information on how to choose the best router for 400 mbps for your needs and budget.
This is the ultimate buyers guide router for 400 mbps.
Our Top Picks
The Best router for 400 mbps
Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox and Spectrum | for Cable Plans Up to 800 Mbps | DOCSIS 3.0 + Gigabit Router
$160.00 in stock
2 new from $160.00
2 used from $107.48
2 used from $107.48
Free shipping
Amazon.com
as of June 21, 2025 7:33 am
Features
- Fast 24x8 DOCSIS 3.0 cable modem with AC1900 dual-band Wi-Fi (2.4GHz & 5GHz). Includes 4 Gigabit Ethernet ports, Power Boost amplifiers, and firewall security. Supports speeds up to 1000 Mbps (modem) and 650 Mbps (service).
- Save up to $156/year on modem rental fees (based on Comcast Xfinity; savings can vary). Certified for Comcast Xfinity, Cox, Charter Spectrum. Not compatible with fiber, DSL, or satellite services. Residential use only. Check ISP requirements before purchase.
- Built-in AC1900 Wi-Fi router with Power Boost for smartphones, laptops, tablets, and more. Four Gigabit Ethernet ports for wired devices. Does not support telephony.
- Wireless Power Boost amplifies Wi-Fi signals to the legal limit for better speed and range. AnyBeam technology on 2.4GHz & 5GHz focuses signals on connected devices for improved performance and coverage.
- Technical support available via phone, chat or email. Please contact us for any issues with connecting to service.
NETGEAR Nighthawk Cable Modem Wi-Fi Router Combo with Voice C7100V - Supports Cable Plans Up to 400 Mbps, 2 Phone lines, AC1900 Wi-Fi Speed, DOCSIS 3.0
$99.99 in stock
3 used from $99.99
Amazon.com
as of June 21, 2025 7:33 am
Features
- COMPATIBLE WITH XFINITY INTERNET & VOICE SERVICE: Certified by Comcast for Xfinity. Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and non-Xfinity voice services.
- SAVE MONTHLY RENTAL FEES: Model C7100V replaces your cable modem and Wi-Fi router, saving you up to $168/year in equipment rental fees.
- Compatible with Xfinity Cable & Voice Plans up to 800Mbps speed.
- FAST WiFi PERFORMANCE: Get up to 1800 sq ft wireless coverage and 30 devices connected with AC1900 speed (up to 1900 Mbps).
- VERSATILE CONNECTIONS: 4 Gigabit Ethernet ports and 2 USB ports give you fast wired connections to your computer, printer, game box, storage drive, and other devices.
NETGEAR Cable Modem Wi-Fi Router Combo C6250 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 300 Mbps | AC1600 Wi-Fi Speed | DOCSIS 3.0
$62.87 in stock
18 used from $58.93
Free shipping
Amazon.com
as of June 21, 2025 7:33 am
Features
- COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
- SAVE MONTHLY RENTAL FEES: Model C6250 replaces your cable modem and WiFi router saving you up to 168 dollars/yr in equipment rental fees.
- SPEEDS BY CARRIER: Spectrum (up to 300Mbps), Xfinity (up to 200Mbps), Cox (up to 150Mbps).
- FAST WiFi PERFORMANCE: Get up to 1500 sq ft wireless coverage and 25 devices connected with AC1600 speed (up to 1600 Mbps).
- VERSATILE CONNECTIONS: 2 Gigabit Ethernet ports and 1 USB port give you fast wired connections to your computer, printer, game box, storage drive, and other devices.
ARRIS SURFboard SBG10 DOCSIS 3.0 16 x 4 Gigabit Cable Modem & AC1600 Wi-Fi Router | Comcast Xfinity, Cox, Spectrum | Two 1 Gbps Ports | 400 Mbps Max Internet Speeds | SURFboard App | 2 Year Warranty
$68.14 in stock
19 new from $63.98
21 used from $30.18
21 used from $30.18
Free shipping
Amazon.com
as of June 21, 2025 7:33 am
Features
- A Trusted Name in Home Connectivity: Get high speeds, better coverage, and a two-in-one product. With the ARRIS SURFboard SBG10 Wi-Fi Cable Modem, you will increase your network capability and get fast streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing.
- Save Money: Own your modem and save. Reduce your cable bill up to 168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
- Modem Technology: DOCSIS 3.0 is a reliable, broadly available, and affordable technology that delivers high speed internet to your home devices.
- Simple and Secure Set-up: Just plug-in, download the SURFboard Central App, and follow the step-by-step intrstuctions to activate the modem, set-up and customize your Wi-Fi network, and add devices to your home network. Once setup is complete, the app provides real-time monitoring of the devices on your network, enhanced parental controls like setting time limits and pausing internet and much more.
- Compatibility: This product is compatible with service providers such as Comcast Xfinity, Cox. This product is not compatible with Charter Spectrum. Please contact your ISP for compatibility.
TP-Link AX5400 WiFi 6 Router (Archer AX73)- Dual Band Gigabit Wireless Internet Router, High-Speed ax Router for Streaming, Long Range Coverage
$94.88 in stock
3 new from $94.88
12 used from $79.08
12 used from $79.08
Free shipping
Amazon.com
as of June 21, 2025 7:33 am
Features
- Gigabit WiFi for 8K Streaming – Up to 5400 Mbps WiFi for faster browsing, streaming, gaming and downloading, all at the same time.Operating Temperature: 0℃~40℃ (32℉ ~104℉)
- Full Featured WiFi 6 Router– Equipped with 4T4R and HE160 technologies on the 5 GHz band to enable max 4.8 Gbps ultra-fast connections.Power:12 V ⎓ 2.5 A
- Connect More Devices – Supports MU-MIMO and OFDMA to reduce congestion and 4X the average throughput
- Extensive Coverage - Enjoy stable WiFi connections, even in the kitchen and bedroom. High-Power FEM, 6× Antennas, Beamforming, and 4T4R structures combine to adapt WiFi coverage to perfectly fit your home and concentrate signal strength towards your devices
- More Vents, Less Heat – Improved vented areas help unleash the full power of the router
Netgear Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including Xfinity by Comcast, Spectrum, Cox (Renewed)
$99.99
in stock
12 new from $98.99
Free shipping
Amazon.com
as of June 21, 2025 7:33 am
Features
- input voltage：120 -240V
- COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and Cable bundled voice services
- SAVE MONTHLY RENTAL FEES: Model C7000 replaces your cable modem and WiFi router saving you up to $150/yr in equipment rental fees. System Requirements Cable broadband Internet service, Check your cable Internet service provider web site for data speed tier compatibility, Not compatible with Cable bundled voice services.
- BUILT FOR FAST SPEED: Best for cable provider plans up to 800 Mbps speed
- FAST Wi Fi PERFORMANCE: Get up to 1800 sq ft wireless coverage and 30 devices connected
NETGEAR Nighthawk Smart Wi-Fi Router, R6700 - AC1750 Wireless Speed Up to 1750 Mbps | Up to 1500 Sq Ft Coverage & 25 Devices | 4 x 1G Ethernet and 1 x 3.0 USB Ports | Armor Security
$175.05
in stock
6 new from $164.57
66 used from $39.41
66 used from $39.41
Amazon.com
as of June 21, 2025 7:33 am
Features
- Recommended for up to 25 devices: Reliably stream videos, play games, surf the internet, and connect smart home devices
- Wired Ethernet ports: Plug in computers, game consoles, streaming players, and other nearby wired devices with 4 x 1 gigabit Ethernet ports
- Loaded with advanced technology: Designed with a 1GHz dual core processor, 3 amplified antennas, Beamforming plus, Dynamic QoS, Smart Connect, and more
- USB connections: Share a storage drive or printer with any connected device or create a personal cloud storage to access from anywhere, using the 1 x 3.0 USB port
- Safe & secure: Supports WPA2 wireless security protocols. Includes Guest Wi-Fi access, DOS, Firewall, VPN, and more
Reyee WiFi 6 Router AX3200 Wireless Router Internet Router, High Speed Smart Router with 8 Omnidirectional Antennas, Dual Band Gigabit Computer Router Mesh Support for Homes up to 3000 Sq. ft. - E5
out of stock
Amazon.com
as of June 21, 2025 7:33 am
Features
- An Unprecedented Wireless Experience with Wi-Fi 6: The AX3200 Wi-Fi 6 Wireless Router features a dual-band signal with a 5G transfer rate of 2400Mbps and a 2.4G transfer rate of 800Mbps, which reduces buffering and latency while allowing smooth roaming.It is not compatible to rout local DNS through Pi Hole.
- Better Signal: This Wi-Fi 6 Wireless Router includes 8 omnidirectional antennas with 4+4 high-power FEM amplifiers. The wireless signal coverage can reach up to 3000 square feet when combined with beamforming filtering. The signal is stronger when it passes through one more wall than four antennas, and diverse room kinds are not afraid.
- Multi-user-friendly Design: This Wi-Fi 6 Wireless Router supports the 802.11ax Wi-Fi standard, allowing many users to share channels and connect up to 128 devices, increasing network capacity and efficiency in congested areas. Easily address the party's multi-device dilemma.
- The One-Click Reyee Mesh Advantage: To create a network and finalize the pairing of several devices, click the Reyee Mesh button. One-click setup, and the entire house is wifi 6.
- High Performance and Stability: If your network isn't up to par, consider purchasing the Reyee AX3200 . Our wireless router provides a stable network with high performance for 78 devices using the groundbreaking OFDMA feature and MU-MIMO technology,allowing for simultaneous video streaming and greater family connectivity.
TP-Link AX1800 WiFi 6 Router (Archer AX21) – Dual Band Wireless Internet Router, Gigabit Router, USB port, Works with Alexa - A Certified for Humans Device
$54.99 in stock
2 new from $54.99
28 used from $40.35
28 used from $40.35
Free shipping
Amazon.com
as of June 21, 2025 7:33 am
Features
- VPN Server: Archer AX21 V4 Supports both Open VPN Server and PPTP VPN Server
- Dual-Band WiFi 6 Internet Router: Wi-Fi 6(802.11ax) technology achieves faster speeds, greater capacity and reduced network congestion compared to the previous generation
- Next-Gen 1.8 Gbps Speeds: Enjoy smoother and more stable streaming, gaming, downloading and more with WiFi speeds up to 1.8 Gbps (1200 Mbps on 5 GHz band and 574 Mbps on 2.4 GHz band)
- Connect more devices: Wi-Fi 6 technology communicates more data to more devices simultaneously using revolutionary OFDMA technology
- Extensive Coverage: Achieve the strong, reliable WiFi coverage with Archer AX1800 as it focuses signal strength to your devices far away using Beamforming technology, 4 high-gain antennas and an advanced front-end module (FEM) chipset
Motorola MB7621 Cable Modem | Pairs with Any WiFi Router | Approved by Comcast Xfinity, Cox, and Spectrum | for Cable Plans Up to 900 Mbps | DOCSIS 3.0
$93.19 in stock
11 new from $93.19
4 used from $56.34
4 used from $56.34
Amazon.com
as of June 21, 2025 7:33 am
Features
- Model MB7621 is recommended for actual cable Internet service speeds up to 650 Mbps. Wirecutter rates this “the best modem for most people.” A Full-Band Capture Digital Tuner ensures faster, more reliable Internet.
- This cable modem's 1 Gigabit Ethernet port connects to a WiFi router, computer, HDTV, game station, or streaming video device. Great for use with Whole Home WiFi or Mesh networks like eero, Google WiFi, and Orbi. (This cable modem does not have a built-in wireless router or telephone call capability. The Motorola MG7315, MG7540, MG7550, and MG7700 have a built-in wireless router.)
- Requires cable Internet service.Approved by and for use with Comcast Xfinity and Xfinity X1, Cox, Charter Spectrum, Time Warner Cable, BrightHouse, CableOne, SuddenLink, RCN, and other cable service providers. Eliminate cable modem rental fees up to 156 dollars per year. (Savings are shown for Xfinity and vary by cable service provider. No cable modem is compatible with fiber optic, DSL, or satellite services from Verizon, AT&T, CenturyLink, Frontier, and others. Model MB7621 has no phone jack.)
- Setup is fast and easy using the quick start guide.
- Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A 2-year warranty plus rugged lightning and power surge circuits protect your investment.
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