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Buttons
WPS Button, Reset Button, Power Button
WPS Button, Reset Button, Power Button, WiFi on/off Button
Product Weight (g)
660 g
835 g640g
AiProtection
• Router Security Assessment, • Malicious Site Blocking, • Two-Way IPS, • Infected Device Prevention and Blocking
• Router Security Assessment, • Malicious Site Blocking, • Two-Way IPS, • Infected Device Prevention and Blocking
Package Content
RT-AC66U Dual Band 3x3 802.11AC Gigibit Router
RJ-45 cable
Power adapter
Quick start guide
Warranty card
1 x RT-AC68U Wireless-AC1900 Dual Band Gigabit Router
1 x RJ-45 cable
1 x Power adapter
1 x QSG
1 x Warranty card
Antenna
External antenna x 3
External antenna x 3
Parental Control
"Allow you to block access to unwanted websites and apps.", Customized Internet Schedule
Customized Internet Schedule, • Maximum Parental Control Profile : 16, • Maximum Parental Control Content Filter Rule : 16, "Allow you to block access to unwanted websites and apps."
Operating Mode
Accesspoint, AiMeshnode, Mediabridge, Repeater, Router
Accesspoint, AiMeshnode, Mediabridge, Repeater, Router
LED Indicator
Power x 1
Wi-Fi x 2
WAN x 1
LAN x 4
Power x 1
WiFi x 2
LAN x 4
Operating Frequency
2.4G Hz / 5 GHz
2.4G Hz / 5 GHz
Power Supply
AC Input : 110V~240V(50~60Hz)
DC Output : 19 V with max. 1.75 A current
AC Input : 110V~240V(50~60Hz)
DC Output : 12 V with max. 2.5 A current
WAN
Internet connection Type : PPPoE, PPTP, L2TP, Automatic IP, Static IP, Yes, 3G / 4G LTE dongle, Yes, • Maximum Port Forwarding Rule : 64, Yes, • Maximum Port Triggering Rule : 32, Yes, Yes, NAT Passthrough : PPTP, L2TP, IPSec, RTSP, H.323, SIP Passthrough,PPPoE relay
Internet connection Type : PPPoE, PPTP, L2TP, Automatic IP, Static IP, Yes, 3G / 4G LTE dongle, Yes, • Maximum Port Forwarding Rule : 64, Yes, • Maximum Port Triggering Rule : 32, Yes, Yes, NAT Passthrough : PPTP, L2TP, IPSec, RTSP, H.323, SIP Passthrough,PPPoE relay
Network Standard
IPv6IPv4WiFi 5 (802.11ac)WiFi 4 (802.11n)IEEE 802.11gIEEE 802.11bIEEE 802.11a
IPv6IPv4WiFi 5 (802.11ac)WiFi 4 (802.11n)IEEE 802.11gIEEE 802.11bIEEE 802.11a
Product Dimensions
219 x 151 x 47 ~ mm (WxDxH) (Without Bezel)
220 x 160 x 83.3220 x 160 x 83 ~ mm (WxDxH)
I/O Ports
RJ45 for 10/100/1000 BaseT for WAN x 1, RJ45 for 10/100/1000 BaseT for LAN x 4
USB 2.0 x 1
USB 3.0 x 1
RJ45 for 10/100/1000/Gigabits BaseT for LAN x 4, RJ45 for 10/100/1000/Gigabits BaseT for WAN x 1
USB 2.0 x 1
USB 3.0 x 1
Transmit / Receive
5GHz 3x32.4GHz 3x3MIMO technology
5GHz 3x32.4GHz 3x3MIMO technology
Remark
RT-AC68U V3 do not support Facebook WiFi function
Product Segment
AC1900 ultimate AC performance : 600+1300 Mbps
USB application
File System : HFS+, NTFS, vFAT, ext2, ext3, ext4, HDD Hibernation, Safely Remove Disk, AiCloud, Download Master, AiDisk, Media Server, Time Machine, Samba Server, FTP Server, Shared Folder Privileges
File System : HFS+, NTFS, vFAT, ext2, ext3, ext4, HDD Hibernation, Safely Remove Disk, AiCloud, Download Master, AiDisk, Media Server, Time Machine, Samba Server, FTP Server, Shared Folder Privileges
Guest Network
Yes, • Maximum Guest Network Rule : 2.4GHz x3, 5GHz x3, Guest Network Connection Time Limit, Guest Network Encryption : Open system, WPA/WPA2-Personal
Yes, • Maximum Guest Network Rule : 62.4GHz x3, 5GHz x3, Guest Network Connection Time Limit, Guest Network Encryption : Open system, WPA/WPA2-Personal
VPN
VPN Client L2TP, VPN Client Open VPN, VPN Client PPTP, VPN Server Open VPN, VPN Server PPTP
VPN Client L2TP, VPN Client Open VPN, VPN Client PPTP, VPN Server Open VPN, VPN Server PPTP
AiMesh
AiMesh, • Primary AiMesh Router, • AiMesh Node
AiMesh, • Primary AiMesh Router, • AiMesh Node
Memory
128 MB Flash, 256 MB RAM
Security
AiProtection, Open system, WPA/WPA2-Personal, WPA/WPA2-Enterprise, Yes, Yes, Yes, • Maximum Firewall Keyword Filter : 64, • Maximum Firewall Network Service Filter : 32, • Maximum Firewall URL Filter : 64
AiProtection, Open system, WPA/WPA2-Personal, WPA/WPA2-Enterprise, Yes, Let's Encrypt, Yes, Yes, • Maximum Firewall Keyword Filter : 64, • Maximum Firewall Network Service Filter : 32, • Maximum Firewall URL Filter : 64
Traffic Control
Yes, • Bandwidth Monitor, • Bandwidth Limiter, -- Maximum Bandwidth Limiter Rule : 32, Yes, -- Maximum Traditional QoS Rule : 32, Yes, • Real-time Traffic Monitor, • Wired Traffic Monitor, • Wireless Traffic Monitor, Yes, • Traffic Analysis Period : Daily, Weekly, Monthly, Yes
Yes, • Bandwidth Monitor, • Bandwidth Limiter, -- Maximum Bandwidth Limiter Rule : 32, Yes, -- Maximum Traditional QoS Rule : 32, Yes, • Real-time Traffic Monitor, • Wired Traffic Monitor, • Wireless Traffic Monitor, Yes, • Traffic Analysis Period : Daily, Weekly, Monthly, Yes
Wireless
Yes, WiFi MAC Address Filter, • Maximum MAC Filters : 64, Yes, Yes, RADIUS Client, Yes, Yes
Yes, WiFi MAC Address Filter, • Maximum MAC Filters : 64, Yes, Yes, RADIUS Client, Yes, Yes
WiFi Data Rate
WiFi 5 (802.11ac) : up to 1300 MbpsWiFi 4 (802.11n) : up to 450 Mbps802.11g : up to 54 Mbps802.11b : up to 11 Mbps802.11a : up to 54 Mbps
WiFi 5 (802.11ac) : up to 1300 MbpsWiFi 4 (802.11n) TurboQAM : up to 600 MbpsWiFi 4 (802.11n) : up to 450 Mbps802.11g : up to 54 Mbps802.11b : up to 11 Mbps802.11a : up to 54 Mbps
LAN
DHCP Server, Yes, IPTV, Manually Assign IP Address, • Maximum Manually Assign IP Address Rule : 64, Yes
DHCP Server, Yes, IPTV, Manually Assign IP Address, • Maximum Manually Assign IP Address Rule : 64, Yes
Administration
Yes, Yes, Yes, Yes
Yes, Yes, Yes, Yes
- The actual transfer speed of USB 3.0, 3.1, 3.2, and/or Type-C will vary depending on many factors including the processing speed of the host device, file attributes and other factors related to system configuration and your operating environment.
- Actual data throughput and WiFi coverage will vary from network conditions and environmental factors, including the volume of network traffic, building material and construction, and network overhead, result in lower actual data throughput and wireless coverage.
- Quoted network speeds and bandwidth based on current IEEE 802.11ac/802.11ax specifications. Actual performance may be affected by network and service provider factors, interface type, and other conditions. Connected devices must be 802.11ac/802.11ax compatible for best results.
- WPA/WPA2 enterprise is only available on single router, is not available under AiMesh mode.
- When traditional QoS is enabled, there will be limitations due to the actual Internet service bandwidth and different environment, and there may be a risk of speed reduction.
- Due to the different power supply requirements on USB external hard disk and 4G/5G Modem device, to ensure that the external device can be used stably, if the USB external device exceeds the standard USB 2.0 (5V/500mA) and USB 3.1 Gen 1 (5V/900mA) power supply requirements, you need to use it with an independent external power supply.
- If you use the product in conjunction with a third party service, you are responsible for complying with the third party provider's terms and conditions and privacy policy and are also at the risk of such use. ASUS does not provide support or guarantee continuous integration support for products that are not part of ASUS.
- For models with Time machine support, starting with macOS 26 (Tahoe), Time Machine no longer supports creating new backups on USB-connected storage devices. Existing Time Machine drives that were previously configured remain compatible and can continue to be used for backup and restoration.

