Quectel EG25-G 4G module for Huidu controllers
This product is listed as an EG25-G Mini PCIe cellular module for compatible Huidu equipment. The Quectel EG25-G is an LTE Cat 4 platform for M2M, IoT and digital-signage communication. Select it only after confirming the controller model, modem support and mobile-network requirements.
Connectivity specifications
| Listed product | Quectel EG25-G Mini PCIe 4G module for compatible Huidu products |
|---|---|
| Cellular category | LTE Cat 4 |
| Core-module LTE FDD peak rates | Up to 150 Mbps downlink / 50 Mbps uplink |
| Core-module LTE TDD peak rates | Up to 130 Mbps downlink / 30 Mbps uplink |
| Supported network families in core datasheet | LTE, UMTS/HSPA+ and GSM/GPRS/EDGE; local availability and carrier support must be checked |
| Antenna technology | MIMO support in the EG25-G core-module specification |
| GNSS | Listed as optional in the core datasheet; confirm the supplied assembly and host support |
| Document scope | Linked PDF describes the EG25-G LGA core module, not the complete Mini PCIe assembly |
Check the module assembly and network
Document scope: Although the product title refers to Mini PCIe, the original PDF describes the EG25-G in an LGA package. Core-module dimensions, weight and supply voltage are not specifications for the complete expansion card and are therefore not presented as assembly ratings here.
Confirm the supplied module version, controller firmware, antenna arrangement and SIM requirements before installation. GNSS is marked optional in the datasheet and depends on the supplied module and host implementation. Older network modes require an operator that still offers the relevant service.
Original module and socket images




Frequently asked questions
Will this EG25-G module work with every Huidu controller?
No universal compatibility is established by this listing. Confirm the exact controller model, hardware slot, firmware and supported modem version before ordering. A matching Mini PCIe connector alone is insufficient.
Will the module work with my mobile operator?
Check the EG25-G band support against your operator, region and SIM service, and confirm that the Huidu controller supports the supplied module. The core datasheet’s global-band description does not guarantee service on every network.
Are the listed LTE speeds guaranteed?
No. The 150 Mbps downlink and 50 Mbps uplink figures are LTE FDD peak rates from the core-module datasheet. Actual transfer speed depends on network coverage, signal quality, service and the host system.
Does the PDF give the dimensions and voltage of this Mini PCIe card?
The retained PDF describes the LGA core module. Its dimensions and supply figures should not be applied to the complete Mini PCIe assembly. Request the assembly specification and confirm the actual board before installation.



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