Top performing router at 5 GHz N.
Very good in 11ac mode.
An extremely fast 802.11ac router.
External, upgradeable antennas.
Comprehensive built-in server offerings.
Lots of features for homes and businesses.
Some sluggish performance in the interface.
Connected clients lost Internet connectivity a few times.
Doesn't mount securely to its optional stand.
Not the fastes 2.4GHz 802.11n router.
Some features are still in beta.
Performance on the 2.4Ghz frequency and its Web interface could both use some improvement.
By Missing Remote on October 09, 2013
When it comes to speed and range the ASUS AC-RT66U shines, but unfortunately the same cannot be said when it comes to stability in operation -- especially in Media Bridge mode. Some of this can be overcome by running the 802.11AC router in its default...-
By TrustedReviews on July 31, 2013
The Asus RT-AC66U is a superb router, but it's not quite our favourite. It's very, very fast, which is great news if you only care about performance, but rivals have a few more features we'd like Asus to add.80
By Legit Reviews on June 13, 2013
Even though the ASUS RT-AC66U Dual-Band 802.11ac was not the fastest wireless router we had, the features and GUI make up for its speed test performance...-
By OCWorkBench on April 17, 2013
Bluetooth 17 Apr 2013 A traditional 802.11n router is probably what most people would use with their signed up broadband plans. While it delivers the connection, wireless speed is always a major complain. While most 802.11n promises a speed of...83
By Tom's Hardware UK on January 14, 2013
Five years ago, we didn't have homes with a dozen wireless nodes and the need to run HD video to multiple screens. Today we do. Our 802.11n networks, especially on the 2.4 GHz band, are swamped. Can 802.11ac save the day? We test six routers to find...-
By itproportal.com on December 05, 2012
The Asus RT-AC66U is on a par with the excellent Cisco Linksys EA6500 11ac router. However, the two routers are best suited for two different types of customers. Those who may not be as comfortable setting up network devices, and would benefit from an...80
By PC Mag on November 30, 2012
More technical and small business users including those wanting a true VPN server, robust IPv6, and granular control over the wireless signal will find the Asus RT-AC66U a...80
By Kitguru.net on November 14, 2012
Wireless routers are now an essential part of any household, connecting Desktop Computers, Games Consoles, Media Servers, Laptops, Tablets and Phones to your home network and more importantly the internet. With this many devices connecting to the...90
By VR-Zone on November 05, 2012
Externals At a glance, the RT-AC66U is almost indistinguishable from its predecessor, the RT-N66U "Dark Knight", save for the gold color logo on the top right corner of the router. The front side of the router has the LED indicators for power,...80
By uk.hardware.info on October 08, 2012
Two aspects are important with the ASUS RT-AC66U. First, how does it compare to other ac-routers? The ASUS router did clearly perform better than the Buffalo and Netgear routers. And secondly, should you get an 802.11ac instead of an 802.11n? Our...-