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Product Dimensions
177 x126 x 34 ~ mm (WxDxH)
292 x 180 x 61 ~ mm (WxDxH) (Without Bezel)
Product Weight (g)
271 g
795 g
I/O Ports
RJ45 for 10/100Mbps BaseT for WAN x 1
RJ45 for 10/100Mbps BaseT for LAN x 4
1 x RJ11 for xDSL 4 x RJ45 10/100/1000/Gigabits BaseT for LAN 1 x RJ45 10/100/1000/Gigabits BaseT for WAN
Operating Frequency
2.4GHz
5GHz
5 GHz
2.4 GHz
USB application
Safely Remove disk, AiCloud, Download master, AiDisk, Media Server, Samba Server, FTP Server
WiFi Data Rate
WiFi 5 (802.11ac) : up to 433 Mbps
WiFi 4 (802.11n) : up to 300 Mbps
802.11g : up to 54 Mbps
802.11b : up to 11 Mbps
802.11a : up to 54 Mbps
1024QAM (5GHz) : up to 2167 Mbps
1024QAM (2.4GHz) : up to 1000 Mbps
WiFi 5 (802.11ac) : up to 1734 Mbps
WiFi 4 (802.11n) TurboQAM : up to 800 Mbps
WiFi 4 (802.11n) : up to 600 Mbps
802.11g : up to 54 Mbps
802.11b : up to 11 Mbps
802.11a : up to 54 Mbps
Power Supply
AC Input : 110V~240V(50~60Hz)
DC Output : 12 V with max. 0.5 A current
AC Input : 110 ~240 V(50~60HZ) DC Output : 19 V/3.42 A
WAN
Internet connection Type : PPPoE, PPTP, L2TP, Automatic IP, Static IP, Port forwarding, • Maximum Port Forwarding Rule : 64, Port triggering, • Maximum Port Triggering Rule : 32, DMZ, DDNS, NAT Passthrough : PPTP, L2TP, IPSec, RTSP, H.323, SIP Passthrough,PPPoE relay
Port forwarding, • Maximum Port Forwarding Rule : 32, Port triggering, • Maximum Port Triggering Rule : 32, DMZ, DDNS
Parental Control
"Allow you to block access to unwanted websites and apps.", Customized Internet Schedule
"Allow you to block access to unwanted websites and apps.", Web & Apps Filters, Time Scheduling, • Maximum Parental Control Profile : 16
Security
Open system, WPA/WPA2-Personal, WPA/WPA2-Enterprise, WPS, SSH, Firewall, • Maximum Firewall Keyword Filter : 64, • Maximum Firewall Network Service Filter : 32, • Maximum Firewall URL Filter : 64
VPN, WPS, Firewall, • Maximum Firewall Network Service Filter : 32, • Maximum Firewall URL Filter : 30
LAN
DHCP Server, IGMP Snooping, IPTV, Manually Assign IP Address, • Maximum Manually Assign IP Address Rule : 64, Wake on LAN (WOL)
DHCP Server, IGMP snooping, IPTV, Manually assign IP address, • Maximum Manually Assign IP Address Rule : 64
Buttons
WPS Button, Reset Button, Power Button
WPS Button, Reset Button, Power Button, Wireless on/off Button, LED on/off Button USB 2.0 x 1 USB 3.0 x 1
xDSL Data Rate
VDSL2 Upstream: 150Mbps, Downstream: 200Mbps ADSL2+ Upstream: 3.3Mbps, Downstream: 24Mbps ADSL2 Upstream: 3.5Mbps, Downstream: 12Mbps
Guest Network
"The Guest Network provides Internet connection for guests but restricts access to your local network.", • Maximum Guest Network Rule : 2.4GHz x3, 5GHz x3, Guest Network Connection Time Limit, Guest Network Encryption : Open system, WPA/WPA2-Personal
"The Guest Network provides Internet connection for guests but restricts access to your local network.", Guest Network, • Maximum Guest Network Rule : 2.4GHz x3, 5GHz x3, Guest Network Connection time limit, Guest Network Encryption : Open system, WPA2-Personal, WPA-Auto-Personal
User Interface
WEB: ASUSWRT
Package Content
RT-AC51 Wi-Fi router
1 x RJ-45 cable
1 x Power adapter
1 x QSG
1 x Warranty card
VDSL/ADSL DSL-AC88U Network cable (RJ-45) Power adapter Splitter DSL Cable Warranty card Quick Start Guide Support CD
Antenna Maximum Transmit Power
External antenna x 4
Detachable antenna x 4
Network Standard
IEEE 802.11i
IEEE 802.11e
IPv6
IPv4
WiFi 5 (802.11ac)
WiFi 4 (802.11n)
IEEE 802.11g
IEEE 802.11b
IEEE 802.11a
IPv6
IPv4
WiFi 5 (802.11ac)
WiFi 4 (802.11n)
IEEE 802.11g
IEEE 802.11b
IEEE 802.11a
AiProtection
AiProtection Classic, Router Security Assessment, Malicious site blocking, Two-Way IPS, Infected Device Prevention and Blocking
Memory
16 MB Flash
64 MB RAM
LED Indicator
Power, VDSL, Internet, LAN x 2, 5 GHz WiFi, 2.4 GHz WiFi, USB x 1, E-WAN
Administration
Configuration Backup and Restore, Diagnosis tools, Feedback System, System Log
Configuration backup and restore, Feedback system, System log
Wireless
UTF-8 SSID, WiFi MAC Address Filter, • Maximum MAC Filters : 64, Wireless Scheduler, Airtime Fairness, RADIUS Client, Explicit Beamforming
MU-MIMO, UTF-8 SSID, WiFi MAC address filter, • Maximum MAC Filters : 32, Wireless scheduler, Airtime fairness, Universal beamforming, Explicit beamforming
Traffic Control
• Bandwidth Limiter, -- Maximum Bandwidth Limiter Rule : 32, Traditional QoS, -- Maximum Traditional QoS Rule : 32, Traffic Monitor, • Real-time Traffic Monitor, • Wired Traffic Monitor, • Wireless Traffic Monitor, • Traffic Analysis Period : Daily, Weekly, Monthly
Traditional QoS, -- Maximum Traditional QoS Rule : 32, Traffic Monitor, • Real-time traffic monitor, • Wired Traffic Monitor, • Wireless Traffic Monitor, • Website history
Operating Mode
Accesspoint, Router
Transmit / Receive
5GHz 2x2
2.4GHz 2x2
MIMO technology
Product Segment
AC3100 ultimate AC performance : 1000+2167 Mbps
VPN
VPN Client L2PT, VPN Client Open VPN, VPN Client PPTP, VPN Server Open VPN, VPN Server PPTP
    • 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 specifications. Actual performance may be affected by network and service provider factors, interface type, and other conditions. Connected devices must be 802.11ac-compatible for best results.