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

ASUS N900 WiFi Router (RT-N66U)

Bottom line: The ASUS N900 WiFi Router ($104.42 on Amazon as of 2026-10-06): Concurrent 2.4 GHz + 5 GHz dual band, combined rates up to 900Mbps; main trade-off: wireless-N only, so no Wi-Fi 5, Wi-Fi 6, or WPA3 client speeds.

$104.42

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Buy on Amazon — $104.42 Compare to similar networking

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For home networking and Wi-Fi gear, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Concurrent 2.4 GHz + 5 GHz dual band, combined rates up to 900Mbps
  • ✓ Four gigabit LAN ports for wired desktops, consoles, and NAS
  • ✓ Three detachable R-SMA antennas, over 50% wider coverage than standard N
  • ✓ Two USB ports run Download Master storage, printer sharing, or 3G backup
  • ✓ Asuswrt dashboard adds parental controls, VPN server, and IPv6 support

Cons

  • ✗ Wireless-N only, so no Wi-Fi 5, Wi-Fi 6, or WPA3 client speeds
  • ✗ 900Mbps is the combined two-band figure, not one-radio throughput
  • ✗ Older platform: firmware and security updates have long since slowed
  • ✗ USB ports are USB 2.0-era, limiting attached-drive transfer speeds

Manufacturer description

The ASUS RT-N66U N900 is a dual-band wireless-N router built for households that outgrew a single-band box. It runs 2.4 GHz and 5 GHz concurrently for combined rates up to 900Mbps, so streaming and gaming traffic can sit on the clean 5 GHz band while older phones, printers, and smart plugs stay on 2.4 GHz. Four gigabit Ethernet ports handle wired desktops and consoles, and three detachable R-SMA high-powered antennas push coverage ASUS rates at more than 50% wider than standard N spec, which matters in multi-floor homes and long ranch layouts. Two multi-functional USB ports turn the RT-N66U…

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks scored ASUS N900 WiFi Router using a rating × review-volume × price-fit model applied to published specs and reviews across the networking category. ASUS's networking lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for networking of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Is the ASUS RT-N66U fast enough for gaming and 4K streaming?

It supports concurrent 2.4 GHz and 5 GHz transmissions rated up to 900Mbps combined, and its four gigabit Ethernet ports give consoles and gaming PCs a wired path. For a single 4K stream plus gaming it is workable; heavy multi-4K households are better served by a Wi-Fi 6 router.

How many wired devices can I connect?

There are four gigabit Ethernet LAN ports plus the WAN port, so four devices connect directly. Add an unmanaged gigabit switch to one of those ports if you need more wired drops.

Can I attach a USB hard drive or printer?

Yes. The RT-N66U has two multi-functional USB ports supporting router-attached storage via Download Master, printer sharing across the network, and 3G modem sharing for backup connectivity.

Does it support VPN and IPv6?

Yes. ASUS lists VPN server functionality and IPv6 support on the RT-N66U, both configured from the Asuswrt web dashboard. Check the current firmware release notes for the exact protocols supported on your unit.

Is the RT-N66U hard to set up, and does it have parental controls?

Setup runs through the Asuswrt dashboard UI, which handles initial configuration, signal monitoring, parental controls, and network application control from a browser. Broadly positive setup experiences are common among users.

Key Features

  • 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 3 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

Full Specifications

BrandASUS
ColorBlack
Weight3g
Voltage19 Volts
CoverageWide coverage
Frequency5 GHz
Model NameRT-N66U
Unit Count1.0 Count
Antenna TypeFixed
ConnectivityWireless, USB, WiFi
Model NumberRT-N66U
Built-In MediaComputer Peripherals^Routers^Network Routers^
Control MethodApp
Item Type NameAsus Wireless N900 Db Gig Router (RT-N66U)
Connection TypeWireless
Controller TypeApp Control
Mfr Part NumberRT-N66U
Number of Ports2
Special FeatureWPS
Antenna LocationGaming
Full listing titleASUS N900 WiFi Router (RT-N66U) - Dual Band Gigabit Wireless Internet Router, 4 GB Ports, Gaming & Streaming, Easy Setup, Parental Control

Ready to buy?

ASUS N900 WiFi Router (RT-N66U) - Dual Band Gigabit Wireless Internet Router, 4 GB Ports, Gaming & Streaming, Easy Setup, Parental Control is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $104.42

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Related Networking

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
ASUS N900 WiFi Router (RT-N66U) - Dual Band Gigabit Wireless Internet Router, 4 GB Ports, Gaming & Streaming, Easy Setup, Parental Control
$104.42
View on Amazon →