Banana Pi M2+ is mini size development board that offers great computing performance in an ultra portable form factor.It is a 65mm*65mm fantastic mini size board with Allwinner H series chips. It comes with different versions but share the same interfaces.
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About banana pi BPI-M2+/BPI-M2 Zero/BPI-M2+ EDU/BPI-M2+ (H2)/BPI-M2+ (H5)