Software Features:Supports fastboot to update uboot;UbuntuCore 16.04;Main core: Linux-4.14;Monitor rpi: check system status and information;Npi-config: system configuration utility to configure passwords, language, time zone, hostname, SSH and Automatic Login, and enable / disable i2c, spi, serial and PWMSoftware utility: wiringNP to access GPIO pins;Software Utility: RPi. GPIO_NP to access GPIO pins;Networkmanager: manage the network;System log output from serial port;Nano editor:Welcome window with basic system and status information;Automatically log in with user account "pi" with access to npi-config;Providers include "fa";On the first system, the boot file system will automatically expand.Supports automatic file system checking and repair at system startup.Supports FriendlyElec is NanoHat-PCM5102A;Supports usb wifi module;Supports audio recording and playback with 3.5mm audio jack;Compatible with Ethernet USB port and 100MSupports FriendlyElec BakeBit modules;Supports dynamic frequency scaling and voltage regulation;Relieves overheating compared to Linux-3.4 kernel;Fixed MAC address;Ubuntu OLEDMain core: Linux-4.14;Compatible with FriendlyElec OLED module;Debian;Welcome window with basic system and status information;Debian for NAS Dock;Main core: Linux-4.14;Compatible with FriendlyElec NAS cradle;Optimized OpenMediaVault configuration options;Assigned sectionHardware SpecificationsCPU: Allwinner H3 Quad-core Cortex-A7 up to 1.2 GHzDDR3 RAM: 256MB / 512MBConnectivity: 10/100 M EthernetUSB port: type x 1,2x54mm x 2MicroSD card slot x 1MicroUSB: OTG, for power inputDebug serial port: 4-pin, 2.54mm pitch pin headerAudio input / output port: 5 pins, 2.0mm pitch pin headerGPIO: 2.54mm 36pin! Includes UART, SPI, and intraosseous I2C.Power supply: DC 5V / 2AOperating temperature: -40 Celsius to 80 CelsiusOS / Software: u-boot, UbuntuCore and AndroidColour:Silver + blueMaterial:Metal + plasticPackage Contents:1*NanoPi NEO2 v1.4 512MB development board1*NanoPiHat OLED1* metal case3*Copper buttons1*MciroUSB cable1* heat sink silicone1* foot pad2*M1.6x3mm screw4*M2.5x30mm hex screw1*M2.5 screwdriver1*16GB cardOnly the above package content, other products are not included.Note: Light shooting 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.