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.