Storage:-SD Slot: -SD*1 for external storage up to 128GBConnectivity:Ethernet: 10/100M EthernetAudio:Audio input/output Port: 5Pin, 2.0mm pitch pin header-USB*1:-USB 2.0, OTG & Power In, Type AUSB :2.0 Type A*1, 2.54 mm pin*2model:NEO V1.4CPU:Allwinner H3,-core,4*-A7 Up to 1.2GHzMemory:256MBGPIO: 2.54mm pitch 36pin. It includes UART, SPI, I2C, IO etcSerial Debug Port: 2.54mm pitch 4-pin-headerAudio input/output Port: 2.0mm pitch 5-pin headerPower LED(Red)*1System LED(Green)*1Others:Working Temperature: -20 to 70Power:-USB DC 5V/2AOS Support:FriendlyCore(based on UbuntuCore-16.04),OpenWrt 18.06,Armbian,DietPi,Lakka,Kali version:Linux-4.4-PCB:6 LayerDimension:40 x 40mmMaterial: PCB+Metalcolour: BluePackage Contents:1 x NEO development board1 x -USB cableOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.