Asus RT-N66U Review

Asus RT-N66U
Bottom Line Bottom Line

The Asus RT-N66U has been called "the superhero of Asus' lineup of routers." The successor to the well-reviewed Asus RT-N56U (*Est. $100), the RT-N66U is a true simultaneous dual-band router, operating at 450 Mbps on each band. As such, it's especially recommended for those who use bandwidth heavy applications, such as multiplayer games and 3D HD video streaming, as well as for home and small office environments.

Ease of Use

Great for novice and experienced users. Reviewers report that the Asus RT-N66U is very easy to set up through the supplied CD and also via the Asus website, which is considered to be well designed and easy for beginners to navigate. The website also provides experienced users with access to all the router's features. Some users say they had difficulty setting up the RT-N66U, but these firmware problems seem to have been resolved.

  • Simultaneous dual-band
  • Fast and reliable
  • Great for bandwidth-heavy applications
  • Sleek design
  • Slower data rate on 2.4 Ghz band


Fast, long range performance. The Asus RT-N66U receives praise from experts and users for its excellent coverage, stability and fast data rates, especially on the 5 GHz band. However, the data speed on the 2.4 Ghz band was "more pedestrian."  The RT-N66U has excellent range on both bands, up to 300 feet in the CNET tests. The reviewer especially recommends this router for people who use a lot of bandwidth for 3D HD video streaming and multiplayer games.


Attractive design and two USB ports. The Asus RT-N66U has an attractive design, angular with a black finish. The router has two USB ports, but it doesn't support USB 3.0, though all of the four LAN ports and one WAN port are Gigabit Ethernet (GbE). The USB ports can be used to support printers or external storage. There are two guest networks, one on each band, and each supports three guests.  Both the 2.4 GHz and the 5 GHz band supports the 450 Mbps data transfer standard.

Our Sources


Asus RT-N66U Dark Knight Double 450 Mbps N Router, Dong Ngo, March 22, 2012

Review Credibility: Excellent CNET's Dong Ngo praises the Asus RT-N66U wireless router. With its excellent coverage, high data rates and stability, he calls the RT-N66U "one of the best N900 routers on the market."

2. Small Net

ASUS RT-AC66U 802.11ac Dual-Band Wireless-AC1750 Gigabit Router Reviewed, Tim Higgins, Aug. 20, 2012

Review Credibility: Excellent Tim Higgins gives the Asus RT-N66U wireless router an overall score of 3 out of 5, saying the router's high price and unstable firmware are its downfalls. He likes its selection of features but gives it low marks for reliability.


Untitled, Simon Crisp, April 12, 2012

Review Credibility: Good's comparative review calls the Asus RT-N66U the "superhero of Asus lineup of routers," and Simon Crisp in his individual review agrees. Crisp states that this router is ideal for high bandwidth uses such as 3D HD video streaming and multiplayer gaming.


Michael Brown, Asus RT-N66U Wi-Fi Router Review, May 31, 2012

Review Credibility: Good In's benchmark test, the Asus RT-N66U beats out all other competitors to win the Best of the Best pick. The throughput on both of the dual-bands handily beats out the main competitor, the Netgear WNDR4500 router, and reviewers also like the dual USB 2.0 ports.


ASUS RT-N66U Dual-Band Wireless-N900 Gigabit Router, Contributors to, As of January 2013

Review Credibility: Good The Asus RT-N66U router gets an overall rating of 4.3 stars from  more than 400 user reviewers at More than half the reviewers award it the maximum 5 star rating.