PolarBerry is the first production- and deployment-ready SoM with a hardened real-time, Linux-capable, RISC-V-based MPU subsystem bringing low power consumption, thermal efficiency, and defense-grade security to embedded systems. With a deterministic, coherent RISC-V CPU cluster and a deterministic L2 memory subsystem enabling Linux and real-time applications, PolarBerry is the ideal SoM for users who are looking to develop systems which are not based on ARM processors.