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Asus RT-AC66U router review

450 + 1300 Mbps
IEEE 802.11a/b/g/n/ac
Broadcom BCM4706 @ 600 MHz
256 MB / 128 MB

Asus introduced the RT-AC66U router in 2012. It is powered by Broadcom BCM4706 @ 600 MHz chipset, 256 MB of RAM, and 128 MB of flash memory.

Wondering if the Asus RT-AC66U is a must-have? Keep reading!

Table of Contents

  • Asus RT-AC66U specifications
    • Body, dimensions, weight
    • System, chipset, RAM, flash, power supply
    • Network, protocols, WAN and LAN ports
    • Wireless, antennas, speed, security
    • Connectivity
    • Administration, user interface, login information
    • Links
  • Verdict, Pros and Cons
  • Photos
  • Comparisons

Our personal experiences and opinions form the basis of this article. We aimed to share insights on a topic, and we hoped others would find it useful and inspirational. If you noticed any mistakes or missing details about the Asus RT-AC66U, please let us know.

Asus RT-AC66U / RT-AC66U

The RT-AC66U supports dual-band Wi-Fi, offering both 2.4 GHz and 5 GHz bands. Asus prioritizes network security to keep data safe and secure.

Asus RT-AC66U specifications

BrandAsus
NameRT-AC66U
TypeRT-AC66U
Rating
Rated 3/5 based on 1563 user votes.
Launch2012

Body

Dimensions207 x 148.8 x 35.5 mm
Weight450 g

The dimensions of a router can impact its cooling capabilities. Larger routers have more room for internal cooling. If you plan to mount your router on a wall or ceiling, the weight can affect the mounting process.

System

ChipsetBroadcom BCM4706 @ 600 MHz
RAM256 MB
Flash128 MB
OSAsus
Alternative OSDD-WRT
Power supply19 V / 1.58 A

The Asus RT-AC66U router has a Broadcom BCM4706 @ 600 MHz processor. The 256 MB of RAM helps the router manage many tasks concurrently

Asus RT-AC66U (RT-AC66U) / 2

Network

ProtocolsIPv4
IPv6
LAN ports4 x 10/100/1000 Mbps
WAN ports1 x 10/100/1000 Mbps
Mobile networkyes, with USB dongle
VPN supportPPTP

The latest firmware supports IPv6. It provides a system to identify and locate computers on networks. Gigabit Ethernet ports support data transfer rates of up to 1 gigabit per second. A Gigabit WAN port is useful when your internet plan supports high speeds. The RT-AC66U router supports 3G or 4G dongles, allowing you to connect to a cellular network.

Wireless

Antennas3 x 3.5 dBi
RP-SMA
2.4 GHzyes
5 GHzyes
60 GHzno
StandardsIEEE 802.11a/b/g/n/ac
ClassAC1750
Speed450 + 1300 Mbps
Transmit power23 dBm
SecurityWEP
WPA
WPA2
WPS
Guest networkyes

The 2.4GHz band refers to the part of the radio spectrum between 2.400 and 2.4835 gigahertz. The 5 GHz band is less crowded, and the RT-AC66U router is 5 GHz capable. The Wi-Fi router offers fast data speeds. They're good for streaming HD video, online gaming, and large file transfers. The introduction of WPA2 (Wi-Fi Protected Access 2) improved upon WEP. It provides stronger security. The Wi-Fi Protected Setup (WPS) lets you join a safe wireless network with the push of a button or a simple PIN entry.

Asus RT-AC66U (RT-AC66U) / 1

Connectivity

USB ports2 x USB 2.0
Print serveryes
File serveryes

The USB 2 port has a maximum theoretical data transfer rate of 480 megabits per second (Mbps). USB print servers let you connect a USB printer to your network. You can connect external storage devices such as USB flash drives or USB hard drives to your router.

Administration

Default IP192.168.1.1
Default usernameadmin
Default passwordadmin

Changing the password often is a good security practice. It protects your network and devices from unauthorized access. Changing the default password improves your router's security. It reduces the risk of unauthorized individuals controlling your network.

Official sitehttps://www.asus.com/

Pros and Cons

Every router, including this Asus one, has its good sides and not-so-good sides. Let's take a closer look at both to get a full understanding of what this router can do. Just remember, this is just what I think, and you might see things differently.

Pros

  • generous memory
  • adequate flash
  • IPv6 capable
  • high-speed LAN port
  • high-speed WAN port
  • 3/4G USB modem capable
  • works on 5 GHz band
  • WPS friendly
  • USB 2 compatible
  • printserver functionality
  • fileserver operation

Cons

  • missing Wi-Fi 6 support
  • incompatible with WPA3

Asus RT-AC66U photos

Asus RT-AC66U / RT-AC66U photo
Asus RT-AC66U / RT-AC66U photo
Asus RT-AC66U / RT-AC66U photo
Asus RT-AC66U / RT-AC66U

Asus RT-AC66U comparisons

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Updated: May 25, 2024

Robert Miller
For over 15 years, I've immersed myself in the world of networking devices as a tech aficionado. I've dedicated myself to thoroughly testing and analyzing routers and other networking gear. I aim to provide thorough reviews. They will give you the knowledge needed to improve your network.