u-blox SARA-R4 Multi-Band LTE-M/NB-IoT/EGPRS Modules are multi-band LTE-M/NB-IoT/EGPRS multi-mode solutions. The devices are housed in a miniature SARA LGA form factor (26.0mm x 16.0mm, 96-pin). The modules allow easy integration into compact designs and seamless drop-in migration from other u-blox cellular module families. SARA-R4 series modules provide software-based multi-band configurability enabling international multi-regional coverage in LTE-M / NB-IoT and (E) GPRS radio access technologies.