4G-N12 B1
Wireless-N300 LTE Modem Router
  • 4G LTE mobile broadband for super-fast internet speeds up to 150 Mbps
  • Wireless-N speeds up to 300 Mbps for reliable Wi-Fi connections
  • Wired LAN Ethernet port
  • Sophisticated firewall protects against common web attacks and provides user access control
  • Plug-n-Surf! Easy to setup and use
4G-N12 B1
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Unleash your internet with ultra-fast 4G LTE!

ASUS 4G-N12 B1 is no ordinary Wi-Fi router. Just insert a 4G LTE SIM card and its built-in modem connects to the internet wirelessly via super-fast mobile broadband. You can enjoy up to 150 Mbps downloads and 50 Mbps uploads, with no worries about USB dongle compatibility. And thanks to the wide coverage and 300 Mbps speed of 802.11n Wi-Fi, you can enjoy the 4G LTE internet connection all around your home or office — perfect for those in locations where 4G LTE speeds are faster than conventional ADSL or cable broadband. Convenient and cable-free, 4G-N12 B1 will give you smoothly-streaming HD videos and fast file sharing anywhere. It can even connect to a cable modem to give a second internet connection for backup!

5.3X Faster 4G LTE speed

With 4G-N12 B1, you’ll appreciate the blistering speed of the latest 4G LTE mobile broadband technology, especially if you live out of reach of conventional broadband. It’s capable of up to 150 Mbps downloads and 50 Mbps uploads.

Cable-free 3G/4G WAN and 300 Mbps Wi-Fi

Enjoy the cable-free convenience of 4G LTE mobile broadband! 4G-N12 B1 has a built-in Micro SIM/USIM card slot that lets you share a mobile broadband connection via 300 Mbps Wi-Fi anywhere in the home or office. Surf the web, download apps, stream media and more — with no messy cables!

Detachable and upgradeable 4G LTE antennas

External mobile broadband antennas perform better than internal antennas. Indoors, the best 4G LTE reception is usually found near a window, but if this isn't practical you can easily add an antenna extension cable thanks to the detachable antennas with their standard SMA jack connectors.

Easy Plug-n-Surf

It only takes two steps to get connected with 4G-N12 B1:
1. Insert your 4G LTE Micro-SIM card and turn on the 4G-N12 B1.
2. It will connect automatically to the appropriate mobile network. You're connected!

Monitor and limit monthly data quota

Limit data usage according to monthly quota. UI will show a warning red color and cease the Internet connection if your data usage reaches the specified level.

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  • PCB color and bundled software versions are subject to change without notice.
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  • 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.
  • 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.