pcDuino3B: A20 Single Board Computer supports A-r-d-u-i-n-o Programming with Gbps MAC CPU:AllWinner A20 SoC, 1GHz ARM Cortex A7 Dual Core GPU:OpenGL ES2.0, OpenVG 1.1, Mali 400 Dual Core Onboard Storage:4GB Flash, microSD card (TF) slot for up to 32GB DRAM:1GB 1Gbps Ethernet MAC, Arduino pin header, Aduino UNO Slots: 14x GPIO, 2x PW M, 6x ADC, 1x UART, 1xSPI, 1x I2C