# 4G LTE mini-PCIe modem module Quectel EC25-AFX, US LTE Cat 4

**URL:** https://aio.lv/en/product--quectel-ec25-afx--4486040
**Data updated:** 2026-02-12 14:09 (EET)
**Category:** 5G/4G/3G Modems & Routers
**Manufacturer:** Quectel
**Manufacturer code:** EC25-AFX
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 52.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 43.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--quectel-ec25-afx--4486040

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 18.06.2026 | free |
| Pickup points | 25.06.2026 | 1.99 EUR |
| Courier delivery to door | 25.06.2026 | 4.99 EUR |

## Summary description

Quectel EC25-AFX is a 4G LTE Cat 4 mini-PCIe modem module designed for US LTE networks. It provides cellular data connectivity for embedded systems, routers, gateways and industrial PCs. The module supports LTE downlink/uplink speeds typical for Cat 4 and integrates with host devices via the mini-PCIe interface, enabling reliable mobile broadband and remote connectivity.

## Long description

Quectel EC25-AFX is a 4G LTE Cat 4 mini-PCIe modem module designed for US LTE networks. It delivers cellular data connectivity for embedded systems, routers, gateways and industrial PCs via a standard mini-PCIe interface. The module supports LTE downlink and uplink speeds typical for Category 4 devices and is intended to provide stable mobile broadband and remote connectivity in applications that require reliable cellular access.
Advantages
The EC25-AFX offers a compact mini-PCIe form factor that simplifies integration into host devices. It supports widely used LTE bands in the US for broad network compatibility and provides the performance characteristics associated with LTE Cat 4. Its design focuses on straightforward interfacing with existing hardware and software environments, enabling data and IP-based communications over cellular networks without the need for extensive redesign of host systems.
Suitable for
 Embedded systems requiring cellular WAN connectivity
 Industrial routers and gateways for mobile data access
 Remote monitoring and telemetry devices
 Mobile point-of-sale and fleet management terminals
 Prototyping and product development with mini-PCIe slots
Key specifications
 Cellular category: LTE Cat 4 performance class (supporting typical Cat 4 downlink/uplink rates)
 Form factor: mini-PCIe card for direct host connectivity
 Intended network region: US LTE bands and network compatibility
 Primary function: cellular data modem for IP communications over 4G LTE
 Application domain: embedded, industrial and networking devices
How to use
Install the EC25-AFX into a compatible mini-PCIe slot on the host device and secure it according to the host’s hardware instructions. Connect required external antennas to provide adequate signal strength for LTE operation and attach power and ground through the host board. Configure the host operating system or router firmware to recognize the modem and set APN and network authentication parameters provided by the mobile operator. Use standard PPP or IP-based interfaces and the host’s network manager or command-line tools to establish and monitor the cellular data connection.
Usage recommendations
For reliable operation, use operator-approved SIM cards and verify supported LTE bands with the chosen carrier. Place external antennas with a clear orientation toward the cellular signal source and maintain proper grounding and RF shielding in industrial environments. Keep firmware and drivers up to date to ensure compatibility with host systems and network features.

## FAQ

### How much does the 4G LTE mini-PCIe modem Quectel EC25-AFX cost, and is it available for purchase?

The price is 52.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 18.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Quectel products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Quectel service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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