u-blox's SARA-R4 series modules are an LTE Cat M1, LTE Cat NB1, and EGPRS multi-mode solution in the miniature SARA LGA form factor (26 mm x 16 mm, 96-pin). They allow easy integration into compact designs and seamless drop-in migration from other u-blox cellular module families. SARA-R4/N4 series modules provide software-based multi-band configurability enabling international multi-regional coverage in LTE Cat M1/NB1 and (E)GPRS radio access technologies.