# LTE EG21-GL
## Key features
- LTE Cat 1 module optimized for M2M and IoT applications
- Worldwide LTE, UMTS/HSPA(+) and GSM/GPRS/EDGE coverage
- Multi-constellation GNSS (optional)
- Supports DFOTA and DTMF
- USB 2.0 high-speed interface
- VoLTE (optional)
## Overview
Quectel EG21-GL is an LTE Cat 1 module optimized specially for M2M and IoT applications. Adopting the 3GPP Rel-11 LTE technology, it delivers maximum data rates of up to 10Mbps downlink and 5Mbps uplink. Designed with a compact and unified form factor, EG21-GL is compatible with Quectel UMTS/HSPA+ UC200A-GL module and multi-mode LTE Standard EC2x series (EC25 series, EC21 series and EC20-CE)/EC200A series/EG25-G/EG25-GL/ EG21-G modules, which allow for flexible migration among them in design and use.
EG21-GL is backward-compatible with existing EDGE and GSM/GPRS networks, ensuring that it can be connected even in remote areas devoid of 4G or 3G coverage.
EG21-GL supports Qualcomm® IZat location technology Gen8C Lite (GPS, GLONASS, BDS, Galileo and QZSS). The integrated GNSS greatly simplifies product design, and provides quicker, more accurate and dependable positioning.
A rich set of internet protocols, industry-standard interfaces and abundant functionalities (USB serial drivers for Windows 10/11, Linux, Android) extend the applicability of the module to a wide range of M2M and IoT applications such as smart metering, wearable devices, environmental monitoring, asset tracking, fleet management, smart safety, and alarm systems.
Browse our wide range of antennas – download our antenna brochure
[View brochure](https://www2.quectel.com/quectel_antenna_brochure.pdf)
## Product Brochure
Quectel_Product_Brochure_V8.6.pdf
[Download](https://www.quectel.com/content/uploads/2026/05/Quectel_Product_Brochure_V8.6.pdf)
## Documentation and resources
- **Application Note**
- [Quectel_EC2x&EG2x&EG9x&EM05_Series_eSIM_LPA_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F) (File Size: 402.29 KB)
- [Quectel_EC2x&EG2x&EG9x&EM05_Series_Secure_DFOTA_Mechanism_Introduction_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F) (File Size: 276.92 KB)
- [Quectel_EC2x&EG2x&EG9x_Series_Secure_Boot_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F) (File Size: 590.85 KB)
- [Quectel_EC2x&EG2x&EG9x&EM05_Series_RF_FTM_Application_Note_V1.1](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F) (File Size: 347.27 KB)
- [Quectel_EC2x&EG2x&EG9x&EM05_Series_Data_Call_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F) (File Size: 3.43 MB)
- [Quectel_EC2x&EG2x&EG9x&EM05_Series_DFOTA_Upgrade_Guide_V1.4](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F) (File Size: 234.42 KB)
- [Quectel_EC2x&EG2x&EG9x&EM05_Series_MQTT_Application_Note_V1.5](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F) (File Size: 300.36 KB)
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_TCP(IP)_Application_Note_V1.7](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
451.33 KB
## [Quectel_EC2x&EG2x&EG9x_Series_Security_Feature_Application_Note_V1.1](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
188.90 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_Terminal_Device_Development_Notes_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
152.95 KB
## [Quectel_EC2x&EG2x&EG9x_Series_Power_Back-off_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
273.94 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_QuecCell_Application_Note_V1.2](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
261.36 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_LwM2M_Application_Note_V1.1](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
247.50 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_Network_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
414.15 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_Low_Power_Mode_Application_Note_V1.1](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
268.41 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_FILE_Application_Note_V1.3](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
313.08 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_PPP_Application_Note_V1.2](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
1.29 MB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_USB_Descriptor_Introduction_V1.2](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
276.29 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_GNSS_Application_Note_V1.6](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
526.16 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_SMTP_Application_Note_V1.2](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
240.54 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_SSL_Application_Note_V1.3](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
278.29 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_FTP(S)_Application_Note_V1.3](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
365.99 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_QSIMCFG_AT_Commands_Manual_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
243.48 KB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_AT_Commands_Manual_V2.2](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
1.64 MB
## [Quectel_EC2x&EG2x&EG9x&EM05_Series_QCFG_AT_Commands_Manual_V1.6](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
747.73 KB
## [Quectel_Windows_USB_Driver(Q)_ECM_V1.1_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
17.27 MB
## [Quectel_Android_RIL_Driver_radio1.4_V4.0_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-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-eg21-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-eg21-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-eg21-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-eg21-gl%2F)
File Size
2.37 MB
## [Quectel_Android_RIL_Driver_aidl2_V4.7_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Flte-eg21-gl%2F)
File Size
2.01 MB
## Quectel_Android_RIL_Driver_aidl3_V4.7_EN
File Size
1.75 MB
## Quectel_Android_RIL_Driver_aidl1_V4.7_EN
File Size
1.68 MB
## Quectel_Windows_USB_Driver(Q)_NDIS_V2.8_EN
File Size
9.92 MB
## Hardware Development Resources
### Quectel_EC2x&EG2x_Series_PCB_Design_Guide_V1.3
File Size
5.45 MB
### Quectel_EC2x&EG2x&RG255C_Series_Compatible_Design_V1.1
File Size
634.35 KB
### Quectel_EG2x-GL_Reference_Design_V1.3
File Size
552.17 KB
### Quectel_EG2x-GL_Footprint&Part_V1.1
File Size
220.44 KB
### Quectel_EG2x-GL_3D_Dimensions_V1.0
File Size
960.89 KB
### Quectel_EG2x-GL_2D_Dimensions_V1.0
File Size
260.01 KB
### Quectel_EG2x-GL_Hardware_Design_V1.3
File Size
2.22 MB
## User Guide
### Quectel_EC2x&EG2x&EG9x&EM05_Series_Software_Thermal_Management_Guide_V2.0
File Size
213.01 KB
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## Also of interest
- [LTE EG25-GL](https://www.quectel.com/product/lte-eg25-gl/)
- [New Product Intro: EG915Q-NA LTE Cat 1 bis module](https://www.quectel.com/library/new-product-intro-eg915q-na-lte-cat1-bis-module/)
- [LTE EC200U Mini PCIe series](https://www.quectel.com/product/ec200u-series-mini-pcie/)