D-link N300 4G Smart Router G403-G403/B3GG4IN
Key Features
Brand: D-link
4G LTE CAT4 Connectivity at up to 150Mbps
Wi-Fi 4 Support up to 300Mbps
LTE Bands: 1 / 3 / 7 / 8 / 20 / 28 / 38 / 40 / 41 (2100/1800/2600/900/800/700/2300/2500MHz)
UMTS / HSDPA / HSUPA Bands: 1 / 8 (2100/ 900 MHz)
GSM/ GPRS/ EDGE: 3 / 8 (1800/ 900 MHz)
One dedicated Ethernet WAN Port with automatic failover
Four Fast Ethernet LAN Ports provide optional wired connectivity
Built-in standard-size SIM Card Slot
AI-based Wi-Fi and Traffic Optimiser monitors and improves your network automatically
Supports WPA, WPA2, and the latest WPA3 Wi-Fi Security
Voice control compatibility with Google Assistant and Amazon Alexa
FAST DELIVERY
D-Link N300 4G Smart Router (G403) Product Overview
The D-Link G403 (specifically model variant G403/B3GG4IN) is a smart 4G LTE wireless router designed to provide reliable, high-speed internet access in homes, remote offices, and areas lacking stable fixed-line broadband. By combining mobile cellular connectivity with wireless networking, this device serves as an ideal primary internet gateway or an automatic failover backup solution.
Smart 4G LTE Mobility and Failover Protection
The router features integrated mobile broadband technology to ensure uninterrupted internet uptime
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- SIM Card Slot: Features a built-in slot that accepts standard 4G LTE or 3G SIM cards from any network provider, delivering mobile download speeds up to 150 Mbps and upload speeds up to 50 Mbp
- Dual-WAN Failover: Includes an automatic failover system. Users can connect a primary fixed-line broadband modem to the WAN port; if the fixed line goes down, the router instantly switches to the 4G mobile network to keep devices online.
- AI Optimisation: Integrates smart AI features that continuously monitor local network traffic, automatically routing data and managing bandwidth to minimize network congestion
Wireless Performance and Connectivity
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- N300 Wi-Fi Speed: Delivers Wireless N performance with speeds up to 300 Mbps over the 2.4 GHz frequency band, which is suitable for standard smart home devices, browsing, and media streaming. [
- Physical Ports: Equipped with four Fast Ethernet ports (1 WAN port and 3 LAN ports) to provide secure, stable wired connections for desktop computers, smart TVs, and network storage devices.Â
- External Antennas: Features high-gain external antennas designed to optimize both cellular signal reception from mobile towers and Wi-Fi coverage inside the building.Â
Enterprise-Grade Security and Customization
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- Advanced Encryption: Supports WPA3 wireless security protocols, which utilize the latest encryption algorithms to shield the network from unauthorized access and brute-force attacks
- Built-in Firewall: Employs SPI and NAT firewalls to inspect incoming data packets, preventing malicious cyber threats from breaching the local network.Â
- Parental Controls: Parents and network administrators can block specific website domains, schedule internet downtime, and create isolated guest networks using the management dashboard.Â
Technical Specifications Summary
| Feature | Specification |
|---|---|
| Mobile Network Support | 4G LTE Cat 4 / 3G HSPA+ |
| Mobile Data Speeds | Up to 150 Mbps Download / 50 Mbps Upload |
| Wi-Fi Standard | 802.11n (Wireless N300) |
| Wi-Fi Speed | Up to 300 Mbps (2.4 GHz Band) |
| Physical Interfaces | 3 x LAN, 1 x WAN/LAN, 1 x SIM Card Slot |
| Security Protocols | WPA, WPA2, WPA3 (Wi-Fi Protected Access) |
| Power Input | 12V / 1A external power adapter |
Frequently Asked Questions
Does the D-Link G403 support 5G SIM cards?
The router can hold a 5G SIM card, but it will operate strictly on 4G LTE or 3G mobile frequencies. It does not contain the hardware required to decode or broadcast 5G cellular signals.
The router can hold a 5G SIM card, but it will operate strictly on 4G LTE or 3G mobile frequencies. It does not contain the hardware required to decode or broadcast 5G cellular signals.
How do I configure the 4G mobile internet connection?
In most cases, the router is plug-and-play. You simply insert your SIM card into the slot while the device is powered off, turn it on, and it will automatically detect the provider’s APN settings. If it does not connect, you can log into the web management portal to input the settings manually.
In most cases, the router is plug-and-play. You simply insert your SIM card into the slot while the device is powered off, turn it on, and it will automatically detect the provider’s APN settings. If it does not connect, you can log into the web management portal to input the settings manually.
Can this router be managed through a smartphone application?
Yes, the router is fully compatible with the official EAGLE PRO AI mobile app on iOS and Android, allowing you to run speed tests, view connected clients, and adjust parental settings remotely.Â
Yes, the router is fully compatible with the official EAGLE PRO AI mobile app on iOS and Android, allowing you to run speed tests, view connected clients, and adjust parental settings remotely.Â
Is it possible to attach external outdoor cellular antennas?
The external antennas included on the G403 are typically fixed or specifically tuned for standard indoor use. Modifying them for outdoor arrays may require third-party adapters and could void the factory warranty.Â
The external antennas included on the G403 are typically fixed or specifically tuned for standard indoor use. Modifying them for outdoor arrays may require third-party adapters and could void the factory warranty.Â
What happens when my fixed broadband connection returns after a failover?
The intelligent dual-WAN system monitors the status of the WAN port. Once it detects that your primary fixed broadband line is stable again, it automatically switches traffic back to the fixed line to conserve mobile data
The intelligent dual-WAN system monitors the status of the WAN port. Once it detects that your primary fixed broadband line is stable again, it automatically switches traffic back to the fixed line to conserve mobile data
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