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

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


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/optional built-in eSIM) 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.

Simplify deployment by sourcing antennas at the same time as your modules – see our wide range here

Product Brochure



Documentation and resources

  • Quectel_EG512R&EM12xR&EM160R_Series_UAC_Application_Note_V1.0

    462.45 KB


    339.86 KB


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  • Quectel_EM121R-GL_Hardware_Design_V1.0

    1.96 MB

  • Quectel_EM12xR-GL&EM160R-GL_Thermal_Mitigation_Guide_V1.0

    237.86 KB

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