SARA-G3 - Small form factor GSM/GPRS cellular modules

Dual and Quad-band GSM modules with Automotive-grade and ATEX certified options

The SARA-G3 series of GSM/GPRS modules feature extremely low power consumption and a miniature LGA form factor. SARA-G3 modules are interchangeable, and have been designed with the diverse needs of M2M customers in mind. Different functionalities and feature sets are available to meet different customer and application requirements.

SARA-G340/G350 are full-feature GSM/GPRS modules with a comprehensive feature set, including an extensive set of internet protocols (TCP, UDP, HTTP, FTP and SMTP). They have fully integrated access to u-blox GNSS positioning chips and modules, along with embedded A-GNSS (AssistNow Online and AssistNow Offline) functionality. SARA-G350 is the quad-band version for global connectivity and SARA-G340 (900/1800 MHz) is the dual-band version for cost optimized use in Europe and Asia. Their rich feature set enables customers to easily develop a wide range of M2M devices with minimum software development on the host processor.

SARA-G340 ATEX and SARA-G350 ATEX are ATEX / IECEx certified variants that further complement the product series by offering the ideal solution for the development of smart devices deployed in potentially explosive environments.


  • Very small SARA LGA form factor for easy manufacturing
  • Industry‑leading, low power consumption (<0.90 mA standby)
  • Separate power supply extends battery life
  • Easy migration between u‑blox 2G, 3G and 4G modules
  • Supports eCall and ERA‑GLONASS, CellLocate® indoor positioning and GNSS / A‑GNSS integration

For sales and technical development support from our in-house engineering team, please contact the Alpha Micro team.

SARA-G3_Product Selector

Click here for the u-blox cellular modules linecard.

Part Number Description

Reel Size


GSM/GPRS module for Europe/Asia Dual-band (900/1800), data only

*On phase-out - Last Time Buy before 28th December 2018. Recommended replacement is the SARA-G340



GSM/GPRS module Quad-band, data only

*On phase-out - Last Time Buy before 28th December 2018. Recommended replacement is the SARA-G350

SARA-G340 GSM/GPRS module for Europe/Asia Dual-band (900/1800)
SARA-G340 ATEX Dual-band (900/1800 MHz) GSM/GPRS module, extended feature set, ATEX/IECEx certified

GSM/GPRS module Quad-band, automotive grade


SARA-G350 ATEX GSM/GPRS module Quad-band, ATEX certified
EVK-G35 Evaluation Kit for SARA-G340/G350

The EVK-G31 and EVK-G35 evaluation kits provide simple, flexible and ready-to-use environments for evaluating u-blox' SARA GSM/GPRS wireless modules, as well as for designing and testing of wireless and GPS applications. The kits are very user-friendly, and have both USB and RS232 interfaces for development, testing and tracing.


The kits come with a built-in u-blox GPS receiver module, giving designers the flexibility to either test GSM/GPRS functionality alone or to integrate it together with u-blox GPS technology.

For evaluating Assisted-GPS (A-GPS) a u-blox AssistNow A-GPS client is embedded in the firmware stack (EVK-G35 only), providing users with the option of integrating and testing our license-free A-GPS solutions.

EVK-G31 and EVK-G35 evaluation kits include m-center and u-center: u-blox' interactive evaluation tools for configuration, testing, visualization and data analysis of wireless and GPS receivers. These powerful and easy to use tools provide useful assistance during all phases of a system integration project.

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Last updated: 8 November 2018