The Quectel module is a series of LTE CAT4 & CAT6 module optimized specially for M2M and IoT applications.
Using Region
EC25-AF / EP06-A: North America
EC25-E / EP06-E: EMEA/APAC/BR
EC25-AU: Latin America/Australia/New Zealand
EC25-J: Japan
EC25-V: America Verizon
CAT4
EC25 Series: View Specs
EG25-G: View Specs
CAT6