Quectel EG25-G Mini PCIe 4G Module Overview
The Quectel EG25-G Mini PCIe is a 4G LTE Cat 4 modem module for M2M, IoT and digital signage equipment. Listed here as a Huidu control-system accessory, it provides cellular data connectivity when installed in a compatible host. It uses the standard PCI Express Mini Card form factor and supports LTE-FDD speeds of up to 150 Mbps downlink and 50 Mbps uplink.
For an LED display project, use it as the cellular connection component of a supported controller or media player. Confirm the exact host model, firmware and module interface before ordering; a Mini PCIe connector alone does not establish compatibility.
Key Features
- LTE Cat 4 connectivity for equipment that needs mobile-network data access.
- Support for LTE, UMTS/HSPA+ and GSM/GPRS/EDGE networks, subject to local operator availability.
- Downlink MIMO and receive diversity support.
- USB 2.0 high-speed interface and Quectel enhanced AT commands for host integration.
- Optional multi-constellation GNSS; confirm the supplied configuration if positioning is required.
EG25-G Mini PCIe Specifications
| Parameter | Specification |
|---|---|
| Module model | Quectel EG25-G Mini PCIe |
| Cellular category | LTE Cat 4 |
| Form factor | Standard PCI Express Mini Card (Mini PCIe) |
| Maximum LTE-FDD data rate | 150 Mbps downlink / 50 Mbps uplink |
| Maximum LTE-TDD data rate | 130 Mbps downlink / 30 Mbps uplink |
| Host data interface | USB 2.0 high speed |
| Supply voltage | 3.0–3.6 V; 3.3 V typical |
| Module dimensions | 51.0 × 30.0 × 4.9 mm |
| Operating temperature | −35 to +75 °C |
| Extended temperature range | −40 to +80 °C |
| GNSS option | GPS, GLONASS, BDS, Galileo and QZSS; configuration dependent |
| SIM connector variants | Versions with and without an onboard (U)SIM card connector exist; confirm the required version |
Data rates are theoretical maxima, not guaranteed transfer speeds. Actual performance depends on the network, signal conditions, antennas, SIM service and host integration. Specifications refer to the Mini PCIe version, not the bare EG25-G LGA module.
Compatibility and Ordering Checklist
- Host: provide the controller or media-player model and firmware version for compatibility checking.
- Network: confirm the installation country, operator and supported frequency bands. Legacy 2G/3G fallback requires an available, compatible network.
- Installation: verify host power, USB interface routing, drivers, SIM provision and suitable antennas.
- Configuration: confirm GNSS, the SIM connector variant and supplied accessories before purchase.
Browse Huidu products or contact us with your host model and network requirements.
Frequently Asked Questions
What does the Quectel EG25-G Mini PCIe module do?
It adds cellular data communication to a compatible host device. In a supported digital signage system, it provides the mobile-network connection; the host controller and its software manage the display content.
Is this a complete 4G router?
No. It is a modem module for integration into a host. Check the host, SIM service, antennas and installation requirements before selecting it.
Will it work with every Huidu controller?
Compatibility must be checked for the exact controller and firmware. The Huidu listing category does not mean every Huidu product accepts this module.
Can it connect where there is no 4G coverage?
It supports older UMTS/HSPA+ and GSM/GPRS/EDGE networks where compatible service remains available. It cannot provide cellular data where no supported network is available.
Is GNSS positioning included as standard?
GNSS is listed as optional in the specifications. Confirm the supplied module configuration and antenna requirements if your project needs positioning.
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