# LTE-A EM121R-GL

## Summary
- LTE Cat 12 module
- M.2 package
- Max. 600Mbps downlink / 150Mbps uplink
- 42.0mm × 30.0mm × 2.3mm
- 6.8g
- Extended temperature of -40°C to +85°C

## Key features

- Supports DL 3 carrier aggregation and 256QAM
- Worldwide LTE-A and UMTS/HSPA+ coverage
- Supports PCIe Gen2 interface for PC/Laptop application
- DSSA
- Low power mode
- Multi-constellation GNSS receiver available
- Supports MIMO

## Overview

The EM121R-GL is an LTE-A Cat 12 module designed in accordance to the 3GPP Release 14 specification which supports a theoretical downlink peak data rate of 600Mbps and uplink peak data rate of 150Mbps. With an M.2 form factor of 42.0mm × 30.0mm × 2.3mm, the module is compatible with Quectel’s LTE-A Cat 6 module EM06, Cat 12 modules EM12-G/EM120R-GL and 5G modules RM500Q/RM502Q Series, which facilitates migration between different categories.

The EM121R-GL is designed for the global market and covers nearly all mainstream carriers worldwide. The module supports Qualcomm® IZat™ location technology Gen9-VT (GPS, GLONASS, BeiDou/Compass and Galileo) and supports active GNSS L1+L5 antennas. The integrated GNSS greatly simplifies product design, and provides quicker, more accurate and more dependable positioning capability.

A rich set of Internet protocols, industry-standard interfaces and abundant functionalities (PCIe interface/USB drivers for Windows, Linux, Android) allow the module to serve a wide range of applications such as industrial routers, home gateways, STB, industrial laptops, consumer laptops, industrial PDAs, rugged tablet PCs, and digital signage.

## Product Brochure

[Quectel_Product_Brochure_V8.6.pdf](https://www.quectel.com/content/uploads/2026/05/Quectel_Product_Brochure_V8.6.pdf) - Download

Browse our wide range of antennas – download our antenna brochure

[View brochure](https://www2.quectel.com/quectel_antenna_brochure.pdf)

## Documentation and resources

### Application Note

- [Quectel_EG512R&EM12xR&EM160R_Series_USB_Descriptor_Introduction_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 260.03 KB
- [Quectel_EM12xR-GL&EM160R-GL_GNSS_Application_Note_V1.1](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 468.84 KB
- [Quectel_EG512R&EM12xR&EM160R_Series_RX_Chain_Controlling_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 457.45 KB
- [Quectel_EG512R&EM12xR&EM160R_Series_UAC_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 462.45 KB
- [Quectel_EG512R&EM12xR&EM160R_Series_RF_FTM_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 339.86 KB
- [Quectel_LTE-A(Q)_Series_IMS_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 531.45 KB
- [Quectel_EG512R&EM12xR&EM160R_Series_FILE_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 370.02 KB
- [Quectel_EG512R&EM12xR&EM160R_Series_Data_Call_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 253.49 KB
- [Quectel_EM12xR-GL&EM160R-GL_Secure_Boot_Application_Note_V2.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 389.10 KB

### Drivers

- [Quectel_Windows_USB_Driver(Q)_ECM_V1.1_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 17.27 MB
- [Quectel_Linux_USB_Serial_Option_Driver_V1.1_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 27.47 MB
- [Quectel_Android_RIL_Driver_radio1.4_V4.0_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 2.30 MB
- [Quectel_Android_RIL_Driver_radio1.5_V4.0_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 2.36 MB
- [Quectel_Android_RIL_Driver_ndk_V4.0_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 1.62 MB
- [Quectel_Android_RIL_Driver_radio1.6_V4.5_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 2.39 MB
- [Quectel_Android_RIL_Driver_radio1.5_OemHook_V4.0_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 2.37 MB
- [Quectel_Linux_Android_QMI_WWAN_Driver_V1.5_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 1.26 MB
- [Quectel_Android_RIL_Driver_aidl2_V4.7_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 2.01 MB
- [Quectel_Android_RIL_Driver_aidl3_V4.7_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 1.75 MB
- [Quectel_Android_RIL_Driver_aidl1_V4.7_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 1.68 MB
- [Quectel_Windows_USB_Driver(Q)_NDIS_V2.8_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 9.92 MB

### EVB Kit

- [Quectel_5G-M2_EVB_User_Guide_V1.1](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 4.03 MB

### Hardware Development Resources

- [Quectel_EM121R-GL_Hardware_Design_V1.2](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 2.00 MB

### ToolKit

- [QSwitchPortTool_V1.3_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 2.55 MB

### User Guide

- [Quectel_EG512R&EM12xR&EM160R_Series_FOTA_Upgrade_Guide_V1.3](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 269.53 KB
- [Quectel_EM12xR-GL&EM160R-GL_Thermal_Mitigation_Guide_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-a-em121r-gl%2F) — File Size: 237.86 KB

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