Model Name
RT-AC51
Network Standard
IEEE 802.11a
IEEE 802.11b
IEEE 802.11g
WiFi 4 (802.11n)
WiFi 5 (802.11ac)
IEEE 802.11e
IEEE 802.11i
IPv4
IPv6
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 433 Mbps
Antenna
External antenna x 4
Transmit/Receive
MIMO technology
2.4GHz 2x2
5GHz 2x2
Memory
16 MB Flash
64 MB RAM
Operating Frequency
2.4GHz
5GHz
Ports
RJ45 for 10/100Mbps BaseT for WAN x 1
RJ45 for 10/100Mbps BaseT for LAN x 4
Button
WPS Button, Reset Button, Power Button
Power Supply
AC Input : 110V~240V(50~60Hz)
DC Output : 12 V with max. 0.5 A current
Package content
RT-AC51 Wi-Fi router
1 x RJ-45 cable
1 x Power adapter
1 x QSG
1 x Warranty card
Product Weight (g)
271 g
AiMesh
AiMesh : No
Primary AiMesh router : No
AiMesh node : No
Router APP
ASUS Router APP : Yes
Game
Game Boost/acceleration : No
WTFast : No
Alexa
Support Alexa skil : No
IFTTT
Support IFTTT : No
AiProtection
AiProtection : No
Router Security Assessment : No
Malicious site blocking : No
Two-Way IPS : No
Infected Device Prevention and Blocking ; No
Parental Control
Parental Control : Yes
Parental Control Customized Internet schedule : Yes
Traffic Control
Adaptive QoS : No
Bandwidth Monitor : No
Bandwidth limiter : Yes
Maximum Bandwidth limiter rule : 32
Traditional QoS : Yes
Maximum Traditional QoS rule : 32
Traffic Monitor : Yes
Real-time traffic monitor : Yes
Wired Traffic Monitor : Yes
Wireless Traffic Monitor : Yes
Traffic Analyzer : No
Traffic analysis period : Daily, Weekly, Monthly
Website history : No
Wireless
IPv6 : Yes
MU-MIMO : No
Wi-Fi Encryption : Open system, WPA/WPA2-Personal, WPA/WPA2-Enterprise
UTF-8 SSID : Yes
Guest Network : Yes
Maximum Guest Network rule : 2.4GHz x3, 5GHz x3
Guest Network Encryption : Open system, WPA/WPA2-Personal
WPS : Yes
Wi-Fi MAC address filter : Yes
Maximum MAC filters : 64
Wireless scheduler : Yes
Airtime fairness : Yes
RADIUS Server : Yes
Universal beamforming : No
Explicit beamforming : Yes
IGMP snooping : Yes
WAN
Internet connection Type : PPPoE, PPTP, L2TP, Automatic IP, Static IP
Dual WAN : No
WAN Aggregation : No
3G/4G LTE dongle : No
Android tethering : No
Port forwarding : Yes
Maximum port forwarding rule : 64
Port triggering : Yes
Maximum port triggering rule : 32
DMZ : Yes
DDNS : Yes
NAT Passthrough : PPTP, L2TP, IPSec, RTSP, H.323, SIP Passthrough,PPPoE relay
LAN
DHCP Server : Yes
IPTV : Yes
LAN Link Aggregation : No
Manually assign IP address : Yes
Maximum manually assign IP address rule : 64
VPN
VPN Client L2PT : No
VPN Client OVPN : No
VPN Client PPTP : No
VPN Server IPSec : No
VPN Server OVPN : No
VPN Server PPTP : No
VPN Fusion : No
USB application
File System : FAT16, FAT32, NT3G
3G/4G LTE dongle : No
HDD hibernation : No
Safely Remove disk : No
AiCloud : No
Download master : No
AiDisk : No
Media Server : No
Time Machine : No
Samba Server : No
FTP Server : No
Shared Folder privileges : No
Administration
Operating mode : Accesspoint, Router
Operating system : ASUSWRT
Free OS upgrade : Yes
Firewall : Yes
Maximum Firewall keyword filter : 64
Maximum Firewall network service filter : 32
Maximum Firewall URL filter : 64
Wake on LAN (WOL) : Yes
SSH : Yes
Configuration backup and restore : Yes
Diagnosis tools : Yes
Feedback system : Yes
System log : Yes