CPU: for Allwinner H3, Quad-core Cortex-A7 Up to 1.2GHzFor SD Slot x 1MicroUSB: OTG and inputGPIO: two 2.54mm spacing 12x2pin header, one 2.54mm spacing 10x2pin headerConnectivity: 10/100M EthernetUSB x3(included in 2.54mm pitch pin header)Debug Serial Port(4Pin, included in 2.54mm pitch pin header )Audio input/output Port(4Pin, included in 2.54mm pitch pin header )GPIO:It includes UART, SPI, I2C, IO etc Supply: DC 5V/2ATemperature measuring range: -20 to 70OS/Software: U-boot, Ubuntu-Core and AndroidDDR3 RAM: 512MB DDR3 RAM Number: NanoPi NEOInterface: 3 x USB2.0USB : USB Type AUSB 2.0: x 3Memory Capacity: 512MBcolor:SilverMaterial:Metalsize:47 x 44.5 x 31mmPackage Contents:1 x Development Board+OLED Kit1 x Screwdriver1 x 16G/32G memory card (Random, 't accept the specified.)Only the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.