5G & 4G LTE Ready
The primary standout feature of the R3 Mini is undeniably the inclusion of a Nano SIM socket, enabling support for both 4G LTE and 5G modules. This enhancement truly expands the board’s compatibility for various IoT and industrial applications. The incorporation of the M.2 B-Key socket might be responsible for this remarkable upgrade. SinoVoip confirmed 5G modules tested: Quectel RM500U-CN and RM520N-GL.
Banana Pi BPI-R3 Mini (Optional Configurations)






5G外壳 ,希望能采纳
Any idea what is the purpose of the four holes between the RJ45 jacks?
According to ChatGPT, the holes are like designed for cooing/ventilation ,to improve airflow on the PCB components.