CPU: Allwinner H3, Quad-core Cortex-A7 Up to 1.2GHz DDR3 RAM: 512M Connectivity: 10/100M Ethernet WiFi: 802.11b/g/n Bluetooth: Bluetooth V4.0 of 1, 2 and 3 Mbps. Camera: OV5640 Key: GPIO Key USB Host: 2.54mm pin x2, exposed in 2.54mm pitch pin header Micro-SD Slot x 1 Micro-USB: OTG and power input Debug Serial Interface: exposed in 2.54mm pitch pin header Audio input/output Interface: exposed in 2.54mm pitch pin header GPIO1: 2.54mm spacing 16pin. It includes UART, SPI, I2C, Audio etc GPIO2: 2.54mm spacing 16pin. It includes USB,10/100M Ethernet, IO etc PCB Dimension: 25.4 x 55mm Power Supply: DC 5V/2A Temperature measuring range: -40℃ to 80℃ OS/Software: U-boot,Linux Kernel 4.11.2 (mainline) , Ubuntu 16.04.2 LTS (Xenial) Colour:As Shown Material:PC Package Contents: 1 * NanoPi DUO2 Development Board Kit(The words on the product may vary due to different product batches, but it will not affect the use)