4G LTE Industrial Wireless Gateway
Collie is a compact and cost-effective industrial 4G router. Equipped with the external full-band 4G antennas, the aluminum alloy shell and the hardware watchdog, the mobile router ensures stable LTE connectivity in harsh and hazardous environments. Collie can also serve as a smart industrial Internet gateway with the functions of RS485 interface and the optional IoT module for a range of IoT applications including vending machines, charging piles, smart agriculture, metering, and more.
Built-in 4G Module
Built-in Hardware Watchdog
Support RS485 interface
Built-in Bluetooth or Zigbee Module (Optional)
Learn More
Easy Configuration with New Web UI 3.0
The built-in 4G modem supports AT command, manual/automatic dial number and signal strength checking for better management and configuration.
We also provide a simple configuration with a debugging interface for RS485, including Config (basic configuration), Socket configuration, MQTT configuration. It can meet the needs of development and debugging for basic applications.

RS485 Supported

AT Command

Manual/Automatic Dial Number

Signal Strength Checking

No More Hackers, Access Home Network Securely
Collie provides the best encryption and authentication with OpenVPN & WireGuard®, just like the other GL.iNet products. Keeping your Internet connection private with multiple VPN protocol support. With our Web UI 3.0, you can set up a VPN server easily and access your files securely in a remote site as if you are at home.
WireGuard® is a registered trademark of Jason A.Donenfeld.
WireGuard VPNOpenVPN
* Tests conducted on a local network. Real world speeds may differ depending on your network configuration.
* OpenVPN speeds will be slower when running the device as a server. Results above are in client mode.

DNS Encryption with Cloudflare or NextDNS
Your privacy is well protected with Cloudflare, which prevents eavesdropping and manipulation of DNS data via man-in-the-middle attacks. Your Internet security can also be strengthened by getting the support on the latest DNS technologies such as DoT (DNS over TLS), DoH (DNS over HTTPS), Query Name Minimisation and DNSSEC Validation from NextDNS.

GoodCloud makes it easy to manage and monitor our devices anytime, anywhere, and multiple GL.iNet devices at the same time. You can view the real-time statistics, setup VPN server and client, manage client connection list, and more through the App or web admin panel.
Web Service API
IoT Device Modeling
Control Logic Building
Data Analysis
Remote SSH
Industrial Grade LTE Module for All Regions
GL-X300B is compatible with CAT-M, CAT1 and CAT4 modules. Wherever your office is located, you can easily find the best fit with the best price.
Model Comparison
![]() GL-X300B-RS485 |
VS |
![]() GL-X300B-IOT |
---|---|---|
![]() SIM CARD SLOT |
||
![]() 4G MODULE |
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2 | ![]() EXTERNAL ANTENNAS |
3 |
![]() RS485 |
||
![]() IOT MODULE |
Satisfy All Your Needs
The router has a wide range of application, such as security camera, smart water meters, pressure gauges, smoke detectors, smart farm, industrial devices etc.
Smart Parking
EV Charging Stations
Self-service Terminals
Public Transportation
Industrial Data Collection
Smart Energy
Environment Monitoring
Smart Agriculture
Easy Installation on DIN Rail
The Collie (GL-X300B) industrial 4G router is designed for easy installation, storage, and operation in tough industrial environments. You can install it on the DIN rail for easier installation on shelves or server rooms.
Easy Installation on Wall
The Collie (GL-X300B) 4G industrial router comes with a wall mount set. Allowing the user to mount it on the wall to acquire a better Wi-Fi signal, maximizing your coverage and protect your device.
OpenWrt
Ready
VPN Client/
Server
4G LTE
Module
Hardware
Watchdog
RS485
Din Rail Mount
Bluetooth
Module*
Zigbee
Module*
Specifications
Interface |
1 x Power Port 1 x WAN Ethernet Port 1 x LAN Ethernet Port 1 X Standard SIM Card Slot 1 x Reset Button |
CPU | QCA9531, @650MHz SoC |
Memory / Storage | DDR2 128MB / FLASH 16MB |
Wi-Fi Antennas | 1 x External |
LTE Antennas | 1 x External Full-band Antenna (700M~2.7GHz) |
Wi-Fi Protocol | 802.11 b/g/n |
Wi-Fi Speed | 2.4GHz (150Mbps) |
Ethernet Port | 10/100M |
LEDs | Power, Wi-Fi, 4G and WAN |
Power Supply | 12V/1A DC |
Power Consumption | <10W |
Operating Temperature | -20 ~ 55°C (-4 ~ 131°F) |
Storage Temperature | -20 ~ 70°C (-4 ~ 158°F) | Dimension / Weight | 104 x 113 x 28mm |