CPU:Allwinner R329-N4 Processor CPU: dual core ARM CortexTM-A53 ARM V8 architecture, with the highest dominant frequency of 1512MHz DRAM:SIP 256MB DDR3 AIPU (NPU): equipped with Zhouyi TZ1 AIPU, maximum support 0.25TOPS@600MHz Storage: You can use SPINAND (default empty paste) on the core to store the SD card holder on the backplane IO outgoing: 3 * 10P 2.54mm leads out 4 power supply pins (5V/GND) 11*GPIO pins 1*4P MX1.25 socket (leading out 2 * GPIO and 5V/GND) 720P camera module: OV9732 is formed by USB OTG from the factory, with maximum support 720@30sHD Video recording, USB-C connector, supporting forward and backward insertion (can be used as front and rear camera respectively) Keys: 4 user keys (ADC key), 1 download key (FEL) Screen: 1.54 inch SPI bus screen, resolution 240 * 240 Ethernet interface: led out from the core board in the form of 24P 0.5mm spacing FPC, used to connect the corresponding PHY Microphone: Two analog MEMS microphones, Average sensitivity -42db@f =1khz Display:SPI mode / DBI mode SDIO:SMHC*2 ( SDCO,SDC1 ) I2C:I2C*3 ( TWIO , TWI1 , TWI2 ) SPI:SPL*2 ( SPIO , SPI1 ) I2S:I2S/PCM*3( I2SO , I2S1 and SI2S0 ) Material: PCB colour: Black Package Contents: 1 x M2A core board 1 x Maixsense base plate 1 x USB camera 1 x 1.54 inch screen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.