ASUS DSL-AC51 wireless router Gigabit Ethernet Dual-band (2.4 GHz / 5 GHz) 4G Black

Consistently Praised for Networking Excellence!

Future-proofed versatility with 802.11ac wireless speeds

The ASUS DSL-AC51 is a ADSL/VDSL 802.11ac Wi-Fi modem router, with combined dual-band data rates of up to 733Mbps. On the 5GHz band, 802.11ac gives 433Mbps wireless data rates, while 2.4 GHz 802.11n performance supports 300Mbps. Compatible with ADSL2/2+, ADSL, VDSL2, fiber and cable services, the top specification completes future-proofing.
ASUS AiRadar enhances the Wi-Fi stability and improves coverage dramatically. The easy-to-use ASUSWRT graphical user interface unlocks the power of DSL-AC51 giving robust control to optimize your network for you. 30-second setup and easy traffic management means even network newbies can enjoy its sophisticated features, while power users will love its IPv6 support, multiple wireless SSIDs and encrypted VPN access.

One device, two functions

With a choice of DSL or Ethernet WAN connections, DSL-AC51 can be used a DSL modem plus wireless router, or as a standalone wireless router. You can choose the mode to suit your needs, saving energy and clutter by replacing two separate power-hungry devices. Whether for a basic home setup or an advanced wireless network, DSL-AC51 has all the flexibility you need. You can also let two modes work simultaneously and manage them with ASUSWRT dual WAN function.
DSL-AC51 supports all common types of DSL connection, including ADSL2, ADSL2+, ADSL and VDSL2. Thanks to its Ethernet WAN option, it can also be used seamlessly with any fiber or cable-based modem with an Ethernet connection. This makes it ideal for those who intend to upgrade their ISP in the future.

Enhanced signal range and stability

ASUS AiRadar intelligently improves wireless connections by using exclusive ASUS RF fine-tuning. This ensures extended coverage, increases dynamic data speed, and enhances stability.

3-step easy setup through your pad, smartphone, or PC

Use your smartphone, tablet, or PC to effortlessly set up your ASUS router in less than 30 seconds* and in only 3 easy steps. Simply connect the cables to the router, open a Web browser, and follow the setup wizard to get you to the internet in no time.
* ASUS-tested and verified setup time. Actual duration may vary by ISP, specific connection type, location, and other factors.

ASUS Router App
Control your network anywhere

In your increasingly mobile-enabled life, having control over your network via an app is more important than ever. The new ASUS Router App is built from the ground-up to be both intuitive and robust, allowing you to setup your router, manage network traffic, diagnose connection issues and even update firmware, all without needing to boot up a PC.

Dedicated Wi-Fi for your visitors

Share your internet connection with your guests with no need to share your personal password or network resources. ASUS Guest Network supports up to six separate guest networks, each with its own usage limits and password. Guests cannot access your primary network or any other connected devices.

VPN server and client for encrypted remote connection

With the virtual private network (VPN) server and VPN client, you can access your home network remotely or surf the internet with encryption, no need for paid VPN services or a dedicated VPN server.

Robust control and optimization with ASUSWRT

With the ASUSWRT dashboard UI, setup, monitor, and control network applications all in one intuitive area. With 30-second setup, multi-device detection, and flexible settings, ASUSWRT makes the most of your network performance. Dual WAN enables having two connections/ISPs on one router, with load balance and failover mode for added stability and redundancy to ensure uninterrupted internet access.

Keep Up to Date!

Remember to always keep your device's firmware up to date so you can benefit from the very latest service and security enhancements — and get exciting new features! Learn more about updating new firmware.

ASUS DSL-AC51. Wi-Fi band: Dual-band (2.4 GHz / 5 GHz), Top Wi-Fi standard: Wi-Fi 5 (802.11ac), WLAN data transfer rate (max): 433 Mbit/s. Ethernet LAN interface type: Gigabit Ethernet, Ethernet LAN data rates: 10,100,1000 Mbit/s, Cabling technology: 10/100/1000Base-T(X). Mobile network generation: 4G. Security algorithms: 64-bit WEP, 128-bit WEP, WPA-Enterprise, WPA-PSK, WPA2-Enterprise, WPA2-PSK, WPS, Firewall security: Parental control. Management protocols: IGMP v1/v2/v3, Supported network protocols: IPv4, IPv6

WAN connection
Ethernet WAN	Y
DSL WAN	Y
SIM card slot	N
3G/4G USB modem compatibility	N
Wireless LAN features
Wi-Fi band	Dual-band (2.4 GHz / 5 GHz)
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
WLAN data transfer rate (max)	433 Mbit/s
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
WLAN data transfer rate (first band)	300 Mbit/s
WLAN data transfer rate (second band)	433 Mbit/s
Network
Ethernet LAN	Y
Ethernet LAN interface type	Gigabit Ethernet
Ethernet LAN data rates	10,100,1000 Mbit/s
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11e, IEEE 802.11g, IEEE 802.11i, IEEE 802.11n, IEEE 802.3, IEEE 802.3u
Port forwarding	Y
VPN Passthrough	Y
VPN support	IPSec Pass-Through PPTP Pass-Through L2TP Pass-Through PPTP server OpenVPN server PPTP client L2TP client OpenVPN client
Mobile network
Mobile network generation	4G
4G	N
DSL features
ADSL	Y
ADSL2	Y
ADSL2+	Y
VDSL	Y
VDSL2	Y
Ports & interfaces
Ethernet LAN (RJ-45) ports	2
USB port	N
RJ-11 ports quantity	1
Memory card slot(s)	N
DC-in jack	Y
Management features
Web-based management	Y
Web-based setup wizard	Y
Quality of Service (QoS) support	Y
Reset button	Y
WPS push button	Y
Security
Security algorithms	64-bit WEP, 128-bit WEP, WPA-Enterprise, WPA-PSK, WPA2-Enterprise, WPA2-PSK, WPS
Firewall	Y
Guest access	Y
Port-based Network Access Control (PNAC)	Y
Filtering	Y
IP address filtering	Y
URL filtering	Y
System event log	Y
DMZ support	Y
Network address translation (NAT)	Y
Protocols
DHCP client	Y
DHCP server	Y
Universal Plug and Play (UPnP)	Y
Management protocols	IGMP v1/v2/v3
Supported network protocols	IPv4, IPv6
Design
Product type	Tabletop router
Product colour	Black
Housing material	Acrylonitrile butadiene styrene (ABS)
Indication light	Y
LED indicators	ADSL, DSL, LAN, Power, WLAN
On/off switch	Y
Antenna
Antenna design	External
Antennas quantity	3
Features
Plug and Play	Y
Firmware upgradeable	Y
Certification	CE
Power
Power source type	AC, DC
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Output voltage	12 V
Output current	1 A
Operational conditions
Storage relative humidity (H-H)	20 - 90%
System requirements
Windows operating systems supported	Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64
Linux operating systems supported	Y
Mac operating systems supported	Mac OS X 10.1 Puma, Mac OS X 10.2 Jaguar, Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion
Mac compatibility	Y
Weight & dimensions
Weight	440 g
Packaging data
Wi-Fi configuration card	Y
Package type	Box