Last Updated & Fact Checked: April 18, 2026
Are you trying to decide between the Asus RT-N66R and the Asus RT-N66U?
Product Versus will provide you with all the product details so you can quickly compare the facts to find which product is right for you – the Asus RT-N66R or the Asus RT-N66U – and find out exactly what the differences are.
Both the Asus RT-N66R and the Asus RT-N66U are quality products, so read on to find out which one is best for your needs!
Asus RT-N66R quick facts
Asus RT-N66U quick facts
Asus RT-N66R product details
Bestseller No. 1
ASUS RT-N66R Dual-Band Wireless-N900 Gigabit Router IEEE 802.11a/b/g/n, IEEE 802.3/3u/3ab
- Gigabit Ethernet ports for the fastest, most reliable internet performance
- Ieee 802.11a/b/g/n, IEEE 802.3/3U/3ab
- Up to 900Mbps wireless data Rates
- 1 x 10/100/1000M WAN; 4 x 10/100/1000M LAN
- Coverage area - 2, 000 square feet
Bestseller No. 2
ASUS N900 Wireless Dual-Band Gigabit Router (RT-N66R) - Certified (Renewed)
- This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
- Gigabit Ethernet Ports for the Fastest, Most Reliable Internet Performance
- IEEE 802.11a/b/g/n, IEEE 802.3/3u/3ab
- Up to 900Mbps Wireless Data Rates
- 1 x 10/100/1000M WAN; 4 x 10/100/1000M LAN
Bestseller No. 3
ASUS RT-N66W Dual-Band Wireless-N900 Gigabit Router (White Version)
- 3 x Detachable antenna for 2.4GHz/5GHz with peak gain 3dBi/ 5dBi
- IPv6 support; VPN Server Support
- 802.11n: up to 450Mbps ; 802.11a/g: up to 54Mbps; 802.11b: up to 11Mbps
- Supports Ethernet and 802.3 with max. bit rate 10/100/1000 Mbps
- 4 x LAN ports for 10/100/1000 BaseT
Asus RT-N66U product details
Bestseller No. 1
ASUS N900 WiFi Router (RT-N66U) - Dual Band Gigabit Wireless Internet Router, 4 GB Ports, Gaming & Streaming, Easy Setup, Parental Control
- 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
Bestseller No. 2
ASUS RT-N66R Dual-Band Wireless-N900 Gigabit Router IEEE 802.11a/b/g/n, IEEE 802.3/3u/3ab
- Gigabit Ethernet ports for the fastest, most reliable internet performance
- Ieee 802.11a/b/g/n, IEEE 802.3/3U/3ab
- Up to 900Mbps wireless data Rates
- 1 x 10/100/1000M WAN; 4 x 10/100/1000M LAN
- Coverage area - 2, 000 square feet
Bestseller No. 3
ASUS RT-BE58U WiFi 7 BE3600 AiMesh Extendable Router, 4K-QAM, MLO, AI Detection 2.5G Port, Four 1G Ports, Commercial-Grade Network Security, Parental Control, IoT Network, Kid’s Network, VPN Network
- Beyond-fast WiFi 7 (802.11be) - WiFi 7 (802.11be) dual-band extendable router boosts speeds up to 3600 Mbps, with 4096-QAM increasing a single frequency band’s transmission speed by 1.2 times
- Unleashing Multi-link operation (MLO) for Ultra-Smooth Connectivity - Link to multiple bands at the same time to ensure stable internet connections and efficient data transfers
- Versatile WAN configuration options - Establish always-on internet through AI WAN detection and a convenient USB port ready for 4G LTE and 5G Mobile tethering.
- Smart Home Master - Easily establish up to three SSIDs with Smart Home Master for easy IoT device setup and management, instant VPN connections, and convenient parental controls.
- Commercial-Grade network security - Network security with commercial-grade AiProtection Pro powered by Trend Micro, plus a one-tap security scan and Safe Browsing.
New products & alternatives to the Asus RT-N66R and the Asus RT-N66U
New
AC Adapter Power Supply Charger Fit for ASUS RT-AC66U RT-66R RT-N66U RT-N66R Router
- AC Adapter Power Supply Charger Fit for ASUS RT-AC66U RT-66R RT-N66U RT-N66R Router
New
Onerbl AC-DC Adapter Replacement for ASUS RT-AC51U RT-AC52U EA-N66R EAN66R-AC750 RT-N10U RT-N10+ C1 RT-N10P RT-N10-N150 N-N900-N Router 12VDC 1A Power Supply Power Supply Adapter Cord Cable
- Brand New, High Quality Replacement AC Wall Power Charger Adapter
- Input: AC 100-240V 50/61Hz Auto (Worldwide AC Input)
- Over Voltage Protection, Over Heat Protection
- Tested Units. In Great Working Condition.
New
Dysead Replacement 19V AC/DC Adapter Compatible with ASUS RT-N66W RT-N66R RTN66W RTN66R RT-AC66U RT-N66U RT-N56U RT-AC66R RTAC66R RT-AC66W RT-N65R RTN65R Gigabit Router,DSL-N55U DSLN55U Modem Router
- 19V AC/DC Adapter Compatible with ASUS RT-N66W RT-N66R RTN66W RTN66R N900 RT-AC66U RT-N66U RT-N56U RT-AC66R RTAC66R RT-AC66W RT-N65R RTN65R Gigabit Router, DSL-N55U DSLN55U Modem Router, AD82030 AD820M0
- SAFETY : With the international quality certification authority, our products are in compliance with industry standards, and include numerous safety mechanisms, including protection against short circuiting, overvoltage, overcurrent, and internal overheating.Ensure the safety during the using.
- PERFORMANCE, SAFETY, RELIABILITY: All of our product lines are put through rigorous quality control procedures to ensure safe, reliable operation for years to come. In addition, our products are in compliance with high industry standards.100-240V 50/60Hz.Premium quality charger.
- Kindly Note:Please make sure that you choose the right device before purchasing.
- Package: 1 x High quality adapter.
New
Jantoy Replacement 19V AC/DC Adapter Compatible with ASUS RT-N66W RT-N66R RTN66W RTN66R N900 RT-AC66U RTAC66R RT-AC66W RT-N65R RTN65R Gigabit Router,DSL-N55U DSLN55U Modem Router,AD82030 AD820M0
- 19V AC/DC Adapter Compatible with ASUS RT-N66W RT-N66R RTN66W RTN66R N900 RT-AC66U RT-N66U RT-N56U RT-AC66R RTAC66R RT-AC66W RT-N65R RTN65R Gigabit Router, DSL-N55U DSLN55U Modem Router, AD82030 AD820M0
- Manufactured with high quality material and built-in protection of over current, over voltage, short circuits . COMPACT DESIGN and LOW CONSUMPTION makes it ideal for taking around and using at home.High-quality materials and tested by the manufacturer to ensure safety and durability.
- Clean the charging port of the power adapter regularly. Because the plug is prone to fouling after long-term use. If it is not cleaned up in time, it will cause poor contact of the plug and even cause the adapter to fail to work.
- Choose Correct Voltage: Please choose correct voltage before plug it to your device. Small household appliances usually don't have circuit protection, if with the wrong voltage, may damage your device. It is important to choose the right voltage before powering your device. We recommend to use less than 330% of the full load.
- Note: Prevent falling from heights during use. Do not throw, knock, or shake the charger. High and low temperatures can shorten the life of electronic equipment, damage chargers, and damage circuit boards. Please use indoors.Please don’t run it overload. Otherwise, it will be damaged soon.
Our conclusion on the Asus RT-N66R vs Asus RT-N66U
Both the Asus RT-N66R and the Asus RT-N66U are high quality products and we are sure you will be happy with either one. In the end it comes down to your budget and the value for money you are looking for.
Either way, the Asus RT-N66R and the Asus RT-N66U are both excellent products that will more than do their job!