Quectel EC25 is a series of LTE Cat 4 module optimized specially for M2M and IoT applications. Adopting the 3GPP Rel. 11 LTE technology, it delivers 150Mbps downlink and 50Mbps uplink data rates. Designed in the compact and unified form factor, EC25 is compatible with Quectel UMTS/HSPA+ UC20 module and multi-mode LTE EC20/EC21 module, which allows for flexible migration among them in design and manufacturing.
Quectel EC25 is a series of LTE Cat 4 module optimized specially for M2M and IoT applications. Adopting the 3GPP Rel. 11 LTE technology, it delivers 150Mbps downlink and 50Mbps uplink data rates. Designed in the compact and unified form factor, EC25 is compatible with Quectel UMTS/HSPA+ UC20 module and multi-mode LTE EC20/EC21 module, which allows for flexible migration among them in design and manufacturing.  
EC25 contains 10 variants: EC25-E, EC25-EU, EC25-EC, EC25-A, EC25-V, EC25-AF, EC25-AU, EC25-AUT, EC25-AUTL and EC25-J. This makes it 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.
EC25 supports Qualcomm® IZat™ location technology Gen8C Lite (GPS, GLONASS, BeiDou, Galileo and QZSS). The integrated GNSS greatly simplifies product design, and provides quicker, more accurate and more dependable positioning.

A rich set of Internet protocols, industry-standard interfaces and abundant functionalities (USB serial drivers for Windows 7/8/8.1/10, Linux, Android/eCall*) extend the applicability of the module to a wide range of M2M and IoT applications such as industrial router, industrial PDA, rugged tablet PC, video surveillance, and digital signage.  
Key Benefits

LTE category 4 module optimized for M2M and IoT applications
Worldwide LTE, UMTS/HSPA+ and GSM/GPRS/EDGE coverage
Multi-constellation GNSS receiver available for applications requiring fast and accurate fixes in any environment
Feature refinements: supports DFOTA*, eCall* and DTMF
MIMO technology meets demands for data rate and link reliability in modem wireless communication systems
 
EC25-E: B1/B3/B5/B7/B8/B20@FDD LTE B38/B40/B41@TDD LTE; B1 B5 B8 @WCDMA
EC25-EC:B1/B3/B5/B7/B8/B20/B28A@FDD LTE B38/B40/B41@TDD LTE; B1 B5 B8 @WCDMA
EC25-V:B4/B13                                                                                                        
EC25-A:B2/B4/B12 WCDMA:B2/ B4/ B5
EC25-AF:B2/B4/B12/B14/B66/B71,WCDMA:B2,B4,B5
EC25-AU:B1/B2/B3/B4/B5/B7/B8/B28/B40,WCDMA:B2/B3/B5/B8@GSM
EC25-J: B1/B3/B8/B18/B19/B26 @FDD B41@TDD B1/B6/B8 /B19@WCDMA