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ASUS AiMesh AC1750 Whole Home Wi-Fi System, Dual-band 3x3 802.11ac Wi-Fi Technology and AiProtection Powered by Trend Micro (RT-AC66U B1 2 Pack)

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  • Banish Wi-Fi Dead Zones - Dual band AC1750 mesh Wi-Fi system delivers strong Wi-Fi to every corner of your home.
  • Flexible Network Naming - Create a single SSID for the entire network or separate SSIDs for each frequency band.
  • Feature Rich - Complete router functionality with services such as VPN, adaptive QoS and more.
  • Wired Inter-Router Connections - Create an optional wired connection between routers for faster, more stable Wi-Fi.
  • Complete Network Security for Family - AiMesh AC1750 Wi-Fi System protects all connected devices from cyber threats and Advanced Parental Controls filter out inappropriate content for your family.

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews
ASUS RT-AC66U B1 Two-Pack Whole-Home WiFi System Devices Angled Towards Each Other

ASUS RT-AC66U B1 Two Pack

A Whole-Home WiFi System

Use the ASUS RT-AC66U B1 two-pack system to blanket an entire home with stable, high-speed WiFi. Thanks to ASUS AiMesh technology, it can connect to other compatible ASUS routers to create an even larger network for a bigger house under the same name. Support for wired inter-router links allows all wireless bandwidth to be given to wireless devices to eliminate any buffering. All the features of each router can also be fully taken advantage of. Router setup is easy via the ASUSWRT web-based interface. You can create separate SSIDs for the 5GHz and 2.4GHz band for the most efficient use of wireless bandwidth. The AiProtection Pro protection and complimentary antivirus protection work together to ensure safe surfing at home or on the go.

Two ASUS AiMesh AC1750 Devices in an Outline of a Two-Story Home

Move Beyond Inflexible WiFi Systems to AiMesh

AiMesh overcomes the limitations found in other whole-home, mesh-networking Wi-Fi systems. Although these systems can be convenient all-in-one solutions, they often come with a limited choice of Wi-Fi speeds, software features and upgrade paths. With AiMesh, you can create a completely flexible whole-home Wi-Fi system tailored to your needs, while continuing to enjoy all the functions of each individual ASUS router, such as extreme Wi-Fi performance and exclusive advanced networking features.

Gif of a Graphic of  man Moving Around the Two Levels of His Home

Seamless, Pain-Free WiFi

AiMesh can create a single, house-wide network name so there's no need to constantly switch between networks as you roam around your home. AiMesh keeps an eye on the signal strength to your device, and switches it seamlessly to another source if necessary. All you have to do is enjoy it!

Top of an ASUS Smartphone Showing the Wi-Fi Network Options on Screen

Your Network, Your Choice

AiMesh enables creation of separate SSIDs for each frequency band, while still providing seamless roaming within the network. This gives you increased flexibility, allowing you to, for example, dedicate the 5GHz band to gaming devices or a smart TV.

Graphic of a One-Floor Home with ASUS AiMesh Devices in Separate Rooms

Wired Inter-Router Links for Faster, More Stable WiFi

AiMesh supports Ethernet backhaul, enabling users with on-wall Ethernet jacks in their home to create a wired connection between the routers in their network. This not only provides fast and reliable inter-router communication for even more stable Wi-Fi, but also dedicates the entire 2.4GHz and 5GHz bands to wireless devices for smoother connections.

ASUS Smartphone with a Graphic Hand Selecting Parental Controls That's Connecting to Two ASUS AiMesh Devices in a Home Floor Plan Layout Graphic

Incredibly Easy, but Incredibly Powerful

AiMesh is incredibly easy to use, but that doesn't mean it's not powerful. With AiMesh, all routers can still use all their own features, as well as all the features of the other routers—with easy central control of all settings from the ASUS Router mobile app or ASUSWRT. So many great features like AiProtection, QoS and Parental Controls work across the entire network, ensuring that no-one can bypass them by connecting to a different router. Just remember to always connect your highest-specification router to your Internet service.

AiProtection Pro, Advanced Parental Control badges Above an ASUS AiMesh Device Next to a PS4 controller, gaming monitor, tablet, smartphone and open laptop that all have shield icons next to them. Powered by Trend Micro

AiProtection Pro

Commercial-Grade Security for Family

All your family members, young or old, are exposed to the dangers of internet every single moment they're online. Disguised cyber threats can sneak in to steal your private data, or your kids may accidentally encounter inappropriate content during their ever-growing screen time. AiMesh AC1750 Wi-Fi system includes Advanced Parental Controls to give you total peace of mind, with AiProtection Pro commercial grade security for your home network and comprehensive, easy control of the online experience for each family member and each device, all via the mobile app.

ASUS AiMesh Devices Angled Towards Each Other Next to Graphic Boxes Showing Gaming, File Transferring, Web Browsing, Media Streaming and Instant Messaging

Complete Device Security

Complimentary Antivirus Protection

AiMesh AC1750 WiFi System includes exclusive added protection for your devices—PCs, smartphones and tablets—even when they're not connected to your home network! With AiMesh AC1750 WiFi System, you can rest assured that your devices always have full antivirus protection, wherever you use them. Each AiMesh AC1750 WiFi System router includes a year's free Trend Micro Mobile Security for two mobile devices and Trend Micro Antivirus+ Security for two Windows PCs!

ASUS AiMesh Devices Angled Towards Each Other Next to Graphic Boxes Showing Gaming, File Transferring, Web Browsing, Media Streaming and Instant Messaging

Adaptive QoS—Prioritize Your Game

Boost your gaming bandwidth with Adaptive QoS (Quality of Service), which allows you to easily prioritize gaming packets and activities. You can even assign full dedicated bandwidth while gaming under gamer solo mode, making AiMesh AC1750 WiFi System the perfect ally for low-latency gaming anywhere in your home. It supports major consoles including PlayStation 3, PlayStation 4, PS4 Pro, PlayStation Vita, Wii U, 3DS and Xbox One.

Learn more about the ASUS RT-AC66U B1 (2PK)


RT-AC66U B1 (2PK)

Router/AP Spec

WAN Ports
1 x 10/100/1000M WAN; 4 x 10/100/1000M LAN
Other Ports
1 x USB 2.0
1 x USB 3.0
Wi-Fi Standards
IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11ac, IPv4, IPv6
Wireless Data Rates
802.11a: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
802.11b: 1, 2, 5.5, 11 Mbps
802.11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
802.11n: up to 450 Mbps
802.11ac: up to 1300 Mbps
Frequency Band
2.4 GHz / 5 GHz
64-bit WEP, 128-bit WEP, WPA2-PSK, WPA-PSK, WPA-Enterprise, WPA2-Enterprise
3 x External antenna


1 x Power
2 x Wi-Fi
1 x WAN
4 x LAN
WPS Button, Reset Button, Power Button
OS Compatibility
Windows 10
Windows 8
Windows 8.1
Windows 7
Mac OS X or higher
Power Supply
AC Input: 110V~240V (50~60 Hz)
DC Output: 19V with max. 1.75A current
1.80" x 8.60" x 5.80"


Connect to other compatible ASUS routers to create a powerful and flexible whole-home Wi-Fi network with ASUS AiMesh

Dual-band 802.11ac 3x3 for combined speeds of up to 1750 Mbps per node

Effortless router setup with the ASUSWRT web-based interface

Monitor and manage your network with ease from your mobile device using the intuitive ASUS Router App

Commercial-grade Security with AiProtection powered by Trend Micro blocks external security threats to protect devices connected to your network from external threats

Adapter Specs

Package Content
2 x RT-AC66U Dual Band 3x3 802.11AC Gigibit Router
2 x RJ-45 cable
2 x Power adapter
2 x Quick start guide
2 x Warranty card

Additional Information

Date First Available
April 26, 2019
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Wired backhaul important 7/4/2020 4:13:41 PM

Pros: Having a house and detached garage with second floor that needed mesh coverage, but also ethernet throughout, the option to connect these routers together on a LAN was important to me. Now having solid wireless coverage with no weak areas.

Overall Review: The setup is a bit complex, and the searching for additional nodes requires patience, but the end result is excellent.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
No more dead spots in the house, and easy setup..6 months review 3/6/2020 11:04:35 AM

Pros: Easy setup with my AiMesh router, plug in and have your main router search for the new mesh unit, click, connect, and done. Now you can move that unit any where in the house as long as there's signal. Repeat with the second and all successive units. Once you have them all programed to AiMesh and placed them in a strategic location, each node suppose to "mesh" with one-another to create this giant blanket of wifi signal and you can basically move about any where within the mesh and maintain the stongest signal possible.

Cons: This is not a "Con" but more as a warning or FYI, glass mirrors, or anything metalic will block any radio wave, so if your computer is behind a mirrored wall (could be on the other side) you will get a weak spot. However, if you have enough node around the mirror, then it won't be an issue. Keep this in mind when you relocate your nodes.
Also, distance from the source, if you are too far away, might want to consider to plug into the node with a lan cable. Yes, a lan cable will extend your node and your area of coverage.

Overall Review: Simply put worth the money

2 out of 2 people found this review helpful. Did you?
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