what is the range of the router?

That is not an easy answer. It covers my house which is 1800 sq feet. Range really depends on number of walls, floors, ceilings between the router and the end device. Also the 2.4 band may be congested with not only your neighbor's routers as well as bluetooth and microwaves. The 2.4 normally has the greater range compared to the 5. sorry I cannot give you a more definitive answer but as I indicated there are too many variables to be able to give a firm it will cover this many sq feet or this many feet from the router. There is a web site smallnetbuilder.com that has lots of good info on router tests and 3rd party firmware that is available. There is a person that goes my Merlin that modifies the Asus firmware adding fixes and features to the rt-n66u but still keeping close to the OEM firmware, unlike other 3rd party firmware should you feel adventurous. You kind find out about his firmware on the smallnetbuilder forums. Hope this helps. Bottom line, this is one of the best routers available currently in my opinion ans many others as well. --bill

We need to use up to 8 devices at once occasionally in our home, will this router cover that?

My Current office has this router, with 6 servers running a high availability cluster, and a web server, along with 6 ip phones, 28 office computers, 2-24 port gigabit switches, along with 3 laptops, 2 windows 10, and 1 mac, and 4 iphones. I also have 2 large network copiers, and 6 network printers, I Think your laptops, tablets, and phones will settle just fine with this router. Be sure that you dont put the router in a hot or humid environment. keep it in a cooler environment in your house.

How robust are the parental controls? Can you restrict by category and individual mac addresses etc.

I am satisfied with the parental controls. You can restrict the times that anyone is on, you can restrict by MAC address, by URL or keyword. I am restricting by all of these things actually. To my knowledge you can't restrict by category, say adult sites in general. However my children know that I can see every website that they visit so that is enough to keep them honest. If you enter enough keywords you can probably block particular categories, such as adult sites. Finally if you go to the ASUS website you can download the user manual and it will show you all of the controls you can work with. Hope this helps.

Wireless Type	802.11n
Number of USB 2.0 Ports	1
Number of USB 3.0 Ports	1
Brand	ASUS
Series	RT-N66U
Item model number	RT-N66U
Operating System	ASUSWRT
Item Weight	1.8 pounds
Product Dimensions	11 x 14 x 3.5 inches
Item Dimensions LxWxH	11 x 14 x 3.5 inches
Color	Black
Voltage	19 Volts
Department	wireless router
Manufacturer	ASUS Computer International Direct
ASIN	B006QB1RPY
Is Discontinued By Manufacturer	No
Date First Available	December 22, 2011

ASUS N900 WiFi Router (RT-N66U) - Dual Band Gigabit Wireless Internet Router, 4 GB Ports, Gaming & Streaming, Easy Setup, Parental Control

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