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LED Indicator

Power x 1
2.4G x 1
5G x 1
LAN x 3
WAN x 1
USBX1

Power x 1
Wi-Fi x 2
WAN x 1
LAN x 4

Product Weight (g)

346g

660 g

AiProtection

• Malicious Site Blocking
• Infected Device Prevention and Blocking

• Router Security Assessment
• Malicious Site Blocking
• Two-Way IPS
• Infected Device Prevention and Blocking

Parental Control

Customized Internet Schedule

"Allow you to block access to unwanted websites and apps."
Customized Internet Schedule

Operating Mode

Access Point, Media Bridge, Repeater, Router

Accesspoint, AiMeshnode, Mediabridge, Repeater, Router

Product Segment

AX1800 ultimate AX performance : 1201 Mbps+ 574 Mbps

USB application

Safely Remove Disk
Download Master
AiDisk
Media Server
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

Power Supply

AC Input : 100V~240V(50~60Hz)
DC Output : 12 V with max. 1.5A current

AC Input : 110V~240V(50~60Hz)
DC Output : 19 V with max. 1.75 A current

Product Dimensions

190 x 126 x 45 mm

219 x 151 x 47 ~ mm (WxDxH) (Without Bezel)

Transmit / Receive

2.4GHz 2x2
5GHz 2x2

MIMO technology
2.4GHz 3x3
5GHz 3x3

I/O Ports

RJ45 for Gigabits BaseT for WAN x 1, RJ45 for Gigabits BaseT for LAN x 3,USB Port x1

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

WAN

Internet connection Type : PPPoE, PPTP, L2TP, Automatic IP, Static IP
Yes
3G / 4G LTE dongle

Internet connection Type : PPPoE, PPTP, L2TP, Automatic IP, Static IP
Yes
3G / 4G LTE dongle
• Maximum Port Forwarding Rule : 64
• Maximum Port Triggering Rule : 32
NAT Passthrough : PPTP, L2TP, IPSec, RTSP, H.323, SIP Passthrough,PPPoE relay

Antenna

Ex-antennas*4

External antenna x 3

Traffic Control

• Bandwidth Limiter
Yes
• Real-time Traffic Monitor
• Wired Traffic Monitor
• Wireless Traffic Monitor

Yes
• Bandwidth Monitor
• Bandwidth Limiter
-- Maximum Bandwidth Limiter Rule : 32
-- Maximum Traditional QoS Rule : 32
• Real-time Traffic Monitor
• Wired Traffic Monitor
• Wireless Traffic Monitor
• Traffic Analysis Period : Daily, Weekly, Monthly

AiMesh

AiMesh
• Primary AiMesh Router
• AiMesh Node

IEEE 802.11a
IEEE 802.11b
IEEE 802.11g
WiFi 4 (802.11n)
WiFi 5 (802.11ac)
IPv4
IPv6

Package Content

RT-AX53U
RJ45 x1
Adapter x1
QSG x1
Warranty Card x1

RT-AC66U Dual Band 3x3 802.11AC Gigibit Router
RJ-45 cable
Power adapter
Quick start guide
Warranty card

Security

Open system, WPA/WPA2-Personal, WPA/WPA2-Enterprise, WPA3-Personal
Yes
Let's Encrypt

AiProtection
Open system, WPA/WPA2-Personal, WPA/WPA2-Enterprise
Yes
• Maximum Firewall Keyword Filter : 64
• Maximum Firewall Network Service Filter : 32
• Maximum Firewall URL Filter : 64

Wireless

Yes
WiFi MAC Address Filter
RADIUS Client

Yes
WiFi MAC Address Filter
• Maximum MAC Filters : 64
RADIUS Client

Memory

128 MB Flash
256 MB RAM

Guest Network

Yes

Yes
• Maximum Guest Network Rule : 2.4GHz x3, 5GHz x3
Guest Network Connection Time Limit
Guest Network Encryption : Open system, WPA/WPA2-Personal

VPN

Instant Guard
VPN Client L2TP
VPN Client Open VPN
VPN Client PPTP
VPN Server IPSec
VPN Server Open VPN
VPN Server PPTP

VPN Client L2TP
VPN Client Open VPN
VPN Client PPTP
VPN Server Open VPN
VPN Server PPTP

Boosts Speed

OFDMA (Orthogonal Frequency Division Multiple Access)
Beamforming: standard-based and universal
1024-QAM high data rate
20/40/80 MHz bandwidth

WiFi Data Rate

802.11a : up to 54 Mbps
802.11b : up to 11 Mbps
802.11g : up to 54 Mbps
WiFi 4 (802.11n) : up to 300 Mbps
WiFi 5 (802.11ac) : up to 867 Mbps
WiFi 6 (802.11ax) (2.4GHz) : up to 574 Mbps
WiFi 6 (802.11ax) (5GHz) : up to 1201 Mbps

802.11a : up to 54 Mbps
802.11b : up to 11 Mbps
802.11g : up to 54 Mbps
WiFi 4 (802.11n) : up to 450 Mbps
WiFi 5 (802.11ac) : up to 1300 Mbps

Operating Frequency

2.4G Hz / 5 GHz

Buttons

WPS Button, Reset Button, Power Switch

WPS Button, Reset Button, Power Button

LAN

DHCP Server
Yes
IPTV
Manually Assign IP Address

DHCP Server
Yes
IPTV
Manually Assign IP Address
• Maximum Manually Assign IP Address Rule : 64

Administration

Yes

Processor

Dual-core (4 VPE)

- 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.