RT-N66U Black Diamond Dual-Band Wireless-N900 Gigabit Router

  • The RT-N66U dual-band wireless router from ASUS brings to the fore super-fast connectivity with up to 450 Mbps per band simultaneously. It works in both 2.4 GHz and 5 GHz frequencies
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Stock Code: NW-049-AS

EAN: 4719543394526

MPN: 90-IG1Z002M02-3PA0

Manufacturer: Asus

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Product information:

RT-N66U Black Diamond Dual-Band Wireless-N900 Gigabit Router

The ASUS RT-N66U dual-band wireless-N900 gigabit router delivers incredible performance and coverage range. With new ASUSWRT UI, quickly setup your network, customize user access, and monitor signal strength. Following the award-winning RT-N56U, the RT-N66U increases Wi-Fi speed for both 5 GHz and 2.4 GHz transmission by 50% up to 900Mbps that makes it ideal for bandwidth demanding tasks such as 3D HD video steaming, multiplayer gaming, USB hard drive file sharing, and USB connected printer sharing. Built-in Wi-Fi amplifiers make the RT-N66U the perfect wireless router for larger, multi-level homes and buildings with signal range that reaches virtually any area.

Whether you’re a tech-savvy enthusiast or a first-time user, the RT-N66U is exceptional easy to use with CD-free, Quick Installation Setup (QIS) that lets you plug-n-surf right out of the box and connect PCs, smartphones, tablets, and other wireless devices quickly. Thanks to its refined interface tools, you get control like never before, letting you monitor signal strength, setup parental settings, and other useful functions in a robust yet intuitive way.

Designed for Class-Leading Speed and Range
Designed with the latest in networking technology, the RT-N66U delivers exceptionally fast wired and wireless connectivity. What’s more, it comes with a powerful detachable Wi-Fi antenna to further extend wireless range.

Dual-Band Connectivity for Lag-Free Entertainment

Delivering both 2.4 GHz and 5 GHz concurrent bands up to 450Mbps and 450Mbps respectively, the RT-N66U has a total speed of up to 900Mbps connectivity to provide speed with stability. Perform basic internet tasks like Web browsing and file downloading under the 2.4 GHz band, while also simultaneously streaming 3D HD content and other demanding applications smoothly on the 5 GHz band.
Optimized and Reliable Wireless Coverage via Ai Radar

ASUS Ai Radar intelligently strengthens connections to wireless devices. With high-powered amplification and beam package, it provides optimized signals in any direction with better coverage to improve data throughput.
Easy Setup Through Your Tablet, Smartphone, or PC

With the RT-N66U, setup is simple. Simply power and connect the router and then open a bowser on a Wi-Fi-enabled device like a laptop or tablet. You will be taken to a setup page with a prompt to enter the ID/password from your Internet provider and that’s it! Now setting up your network is easier than ever.
Powerful functions, easiest management

With the ASUSWRT Dashboard UI, setup, monitor, and control network applications all in one intuitive area. The whole new dashboard interface lets you manage all clients and settings on a single graphical interface and provides 1-click updates.
Optimize Your Network for You

Do you game a lot, or spend most of your time streaming videos? Whatever your planned use is, the RT-N66U has a Quality of Service (QoS) that lets you select how much bandwidth is prioritized for virtually any task. Plus, the traffic monitor allows you to check your Web usage in a clear and graphical interface.
Two Multi-Functional Built-in USB ports

Featuring connectivity to devices, FTPs, SAMBA, UPnP AV servers, and DLNA support, the RT-N66U makes sharing and networking easier with two built-in USB ports. Download HTTP, FTP, and P2P files to a router-connected USB storage device all day without the need of PC. Additionally, the twin USB ports allow network printer and file server connections, so you perform multiple tasks at once.

• 2.4 GHz and 5 GHz Concurrent Dual-Band Transmissions for Strong Signal Strength and Ultra-Fast Connection Rates up to 900Mbps
• Gigabit Ethernet Ports for the Fastest, Most Reliable Internet Performance
• Download Master for Wireless Data Storage and Access to Router-Connected USB Storage Devices
• Expanded Wireless Coverage with Detachable High-Powered Antennas
• File Sharing, Printer Sharing, and 3G Sharing via Two Multi-Functional Built-in USB Ports
• ASUSWRT Dashboard UI for Easy Setup, Signal Monitoring, and Network Application Control


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Customer review

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Average customer rating

(from 13 customer reviews)
All Time (13)

Asus does it again

A long time PC builder, I insist on staying with certain manufacturers such as intel, nviidia, logitech and asus. After my BT Homehub started dying (something more than likely to do with the cup of coffee being spilt on it), I used it as an excuse to buy this router. This thing is just excellent, the amount of controllable options is fantastic and it sets up in just a few mins. Dont use the CD, just go straight to it through the default gateway, default admin and password is "admin" as shown in the manual. As mentioned earlier, username is the BT one, and anything for the password, connected straight away.

This thing is flooded with options such as guest networks, WAN configs, cloud services, QoS settings, parental controls etc etc etc. Buy it now, you wont regret it at all. Well done again Asus, great service from OC. It was installed before I had finished the free packet of Haribo's



Easily the best router i've ever used. Wireless signal is strong, lots of features, easy to use.


Brilliant, especially for Virgin

I have had this router for about 6 months now, and I can honestly say, this is an amazing piece of kit. I do alot of online gaming, and this has improved my Virgin connection tremendously. I used to have insane jitter (anything upwards of 100+ms). Switched the SH2 to modem mode, and stuck this behind it. A small tip, put this router in a nice cool dark place. It does get quite hot to the touch, and also have it standing vertically to dissipate as much heat as possible.


Wonderful cable router

Daniel is mistaken when he states that Tomato firmware is not as good as stock. He could not have tried Shibby's. It has so many more features than stock and it is also better implemented. i.e. Ipv6 is much easier to setup and get working than latest stock firmware.
Solid, stable and looks great too.

Anton 2013-02-01

Asus RT-N66U Black Diamond Dual-Band Wir

Easy to set up, only took 5 minutes from out of the box, no issues connecting a printer, NAS drive and main computer via cable. Wireless worked first time on all devices and the range/signal strength vastly improved over my last router (Belkin). Service from Overclockers great as usual

Andy B 2012-12-28

Asus RT-N66U Black Diamond Dual-Band Wir

Easy to set up, only took 5 minutes from out of the box, no issues connecting a printer, NAS drive and main computer via cable. Wireless worked first time on all devices and the range/signal strength vastly improved over my last router (Belkin). Service from Overclockers great as usual

Andy B 2012-12-28

The BEST router on the market

This is without a doubt the best router on the market. I paid

Daniel 2012-11-14

Excellent Router

I've flashed Tomato-USB shibby onto this router and it performs superbly. The stock FW looks good too, even tho I only used it for like 60secs, as I wanted the better QoS features TomatoUSB offers.

P Maple 2012-08-25

Asus RT-N66U Black Diamond Dual-Band Wir

I purchased this item and it is excellent,I am using this with a draytek vigor 120 on an adsl2+ line,,,speed increased by about 1mb and also the stability is outstanding,there is the Asus 55u available for adsl line but I would recommend the 66u.....excellent router

Darren 2012-06-15

Woot - a router

Lovely piece of kit. Bought to replace the BT Homehub 3 which is ok but the wifi is poo. No such problems with this monster.

Word of advice for BT Infinity users. When setting up, you WILL have problems. When you get to the part where you enter ISP user name and password, the user name is, just as it says in BT's FAQ. BT doesn't require a password - this router's software, however, does - so just enter ANYTHING in the password field, it doesn't matter what as long as it's not blank. Took me hours to suss that out.

snograt 2012-06-12

Many Options

As always OC delivered everything correctly, box was well wrapped etc. The router itself is great as it replaces a D-Link that was 7 years old. Basic config is easy to setup it took 5 minutes. However the issues come when you want to go passed the basic and get everything working with the necessary protection, that requires a few hours and reading the user manual and the support pages on the Asus site. Portforwarding so my Qnap NAS could still be seen from the Net was a bit of an issue as was setting the router as a small FTP server, it

Mike G 2012-05-02


Excellent router,with really good specs,use this with a vigour 120 and increased my bb speed,a must for gaming and the qos works perfectly

Darren 2012-04-19

Excellent, but no DDWRT

Excellent router & features, but do NOT flash to DDWRT. If you do, here's how to recover: (1) Power off (2) Hold down the RESET button (3) Power on (4) Release RESET when the power LED is blinking (5) This is crucial - go to and reset the NVRAM to default values (6) Then use the Firmware Restore utility to re-flash the router. Just saved you many lost hours! :)

Davos 2012-04-14

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