D-Link G403C 4G LTE N300 Wi-Fi Router

D-Link G403C 4G LTE N300 Wi-Fi Router - 3 Year Warranty

D-Link G403C 4G LTE N300 Wi‑Fi Router

The D-Link G403C 4G LTE N300 Wi-Fi Router is a simple and reliable plug-and-play solution for internet access using a SIM card. It's designed for homes, small offices, pop-up setups, or backup connectivity when fibre goes down. Just insert a nano SIM and you'll get instant WiFi without needing fixed broadband.

4G LTE Internet Anytime, Anywhere

The router supports 4G LTE Cat 4 speeds up to 150 Mbps download and 50 Mbps upload, making it suitable for daily tasks like browsing, video calls, and streaming. It works well in areas without wired internet or as a backup line for business continuity.

N300 WiFi for Everyday Usage

With WiFi speeds up to 300 Mbps on 2.4GHz, the G403C handles typical workloads like emails, web browsing, and light streaming smoothly. It's not meant for heavy gaming or high-bandwidth users, but solid for general office or home use.

Connect Up to 32 Devices

You can connect up to 32 devices simultaneously, making it suitable for small teams, families, or shared environments. Phones, laptops, tablets, and smart devices can all connect without needing multiple networks.

WAN Failover for Backup Internet

One key feature is WAN failover, which automatically switches between 4G and wired broadband if one connection fails. This ensures uninterrupted connectivity—useful for SMEs or critical operations.

Strong Signal with External Antennas

The router comes with 4 external antennas (LTE + WiFi, 5dBi) to improve signal strength and coverage. This helps maintain stable connections even in areas with weaker mobile signal.

Technical Specifications

General
Model: G403C
Product Type: 4G LTE Wireless Router
Deployment: Home, SME, temporary sites, failover internet
Usage Mode: SIM-based broadband router (no fixed line required)

Mobile Network (WAN)
4G LTE: Supported (Cat 4)
3G Fallback: Supported (HSPA+)
SIM Slot: 1 × Nano SIM
Plug & Play: Insert SIM card to instantly share internet

Wireless Specifications
Wi-Fi Standard: IEEE 802.11b/g/n (Wi-Fi 4)
Frequency Band: 2.4 GHz
Wireless Speed: Up to 300 Mbps
Coverage: Suitable for small office / home environments
Max Connected Devices: Up to ~32 users simultaneously

Antenna Design
External Antennas: 4 total
• 2 × LTE antennas (approx. 3–5 dBi)
• 2 × Wi-Fi antennas (approx. 5 dBi)
Purpose: Improved signal reception and wider coverage

Ports & Interfaces
LAN Ports: 3 × Fast Ethernet LAN (10/100 Mbps)
WAN/LAN Port: 1 × configurable WAN/LAN
SIM Slot: 1 × Nano SIM
Buttons: WPS / Reset / Power

Operating Modes
4G Router Mode (primary use)
Wireless Router Mode (Ethernet WAN)
Bridge Mode
Wireless ISP Mode
Failover Internet (4G backup for fixed line)

Security
Wireless Encryption: WPA / WPA2 / WPA3
Firewall: NAT + SPI firewall protection
Access Control: IP / MAC filtering
Guest Network: Supported

Performance & Features
Internet Sharing: Share mobile broadband across multiple devices
Ease of Use: Plug-and-play SIM setup with web UI for advanced config
Stability: Designed for continuous 4G connectivity
WAN Failover: Auto switch between wired WAN and 4G
Use Case: Backup WAN, temporary office, retail, remote deployment

Power
Power Input: External power adapter
Power Type: 12V DC input

Physical Specifications
Dimensions: ~222 × 147 × 42 mm
Weight: ~240 g
Form Factor: Desktop router

Package Contents
Router unit
Power adapter
Ethernet cable
Quick installation guide

Key Features
4G LTE SIM-based internet (no fibre needed)
Up to 300 Mbps Wi-Fi (2.4 GHz)
Supports up to ~32 devices
External antennas for stronger signal
Automatic WAN failover support
Simple plug-and-play deployment

Typical Use Cases
Temporary offices or project sites
Retail kiosks / pop-up stores
Backup internet for business continuity
Home broadband alternative (SIM-based)
Dormitories and shared living environments