NanoPi Duo2

CPU	Model: Allwinner H3 Number of Cores: Quad-core Frequency: 4x Cortex-A7 Up to 1.2GHz
Memory	512MB DDR3 RAM
Storage	MicroSD Slot: MicroSD x1 for external storage up to 128GB
Connectivity	Ethernet: 10/100M Ethernet WiFi: 802.11b/g/n Bluetooth: Bluetooth V4.0 of 1, 2, and 3 Mbps Antenna x1: IPX Connector
Audio	Input/Output: exposed in 2.54mm pitch pin header
Video-Input	Camera (OV5640 etc)
USB	MicroUSB: OTG and power input USB Host: 2.54mm pin x2, exposed in 2.54mm pitch pin header
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, GPIO etc Debug Serial Interface: exposed in 2.54mm pitch pin header
LED	Power LED(Red) x1 STAT LED(Green) x1
Others	Working Temperature: -20℃ to 70℃
Power	DC 5V/2A

OS Support	FriendlyCore 16.04 FriendlyWrt 19.07.1O penWrt
Kernel version	Linux-4.14-LTS U-boot-2017.11

Related Resources

Hardware Spec
CPU:	Allwinner H3, Quad-core Cortex-A7 Up to 1.2GHz
DDR3 RAM:	512M
Connectivity:	10/100M Ethernet
USB Host:	2.54mm pin x2, exposed in 2.54mm pitch pin header
WiFi:	802.11b/g/n
Audio input/output Port	exposed in 2.54mm pitch pin header
Bluetooth:	Bluetooth V4.0 of 1, 2 and 3 Mbps.
Debug Serial Port/UART0:	exposed in 2.54mm pitch pin header
microSD Slot:	1
microUSB:	OTG and power input
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:	DC 5V/2A
Working temperature:	-20℃ to 70℃
Software Features
OS Support	U-boot，Linux-4.14 / Linux-3.4, Ubuntu 16.04.2 LTS (Xenial)