Orange Pi 4B is an open-source single-board computer. It can run Android 8.1, Ubuntu 16.04, Ubuntu 18.04, and Debian 9 images. It uses the Rockchip RK3399, and is equipped with Dual 4GB LPDDR4, with an optional 16GB eMMC flash What can I do with Orange Pi 4? Build… * A computer * A wireless server * Games * Music and sounds * HD video * A speaker * Android * Scratch * Pretty much anything else, because Orange Pi 4 is open source Who’s it for? Orange Pi 4 is for anyone who wants to start creating with technology – not just consuming it. It's a simple, fun, useful tool that you can use to start taking control of the world around you.Hardware SpecificationCPURockchip RK3399 (28nm HKMG process) 6-core ARM® 64-bit processor ,main frequency speeds up to 2.0GHz Based on the large and small size core architecture of big.LITTLE: Dual-core Cortex-A72 (large core) + Quad-core Cortex-A53 (small core)GPUMali-T864 GPU Supports OpenGL ES1.1/2.0/3.0/3.1, OpenVG1.1,OpenCL, DX11, support for AFBCPMURK808 PMUMemory+Onboard StorageDual 4GB LPDDR4 + 16GB EMMC Flash Dual 4GB LPDDR4 +EMMC Flash(Default Empty)On-board WIFI+BluetoothAP6256, IEEE 802.11 a/b/g/n/ac, BT5.0Network10/100/1000Mbps Ethernet( Realtek RTL8211E )AudioOutput: 3.5mm Jack and HDMI2.0a Input: MICVideo Outputs1 x HDMI 2.0 ( Type-A ), Supports 4K@60fps output 1 x DP 1.2 (Display Port) , Supports 4K@60fps output Supports Dual MIPI-DSI （4 lines per channel）Camera2 x MIPI-CSI Camera connector (MIPIRX0、MIPITX1/RX1)USB2 x USB2.0 HOST，1x USB3.0 HOST, 1 x USB3.0 Type-CRTCSupport RTC, on-board battery backup interfaceDebug UART3 pins Debug UARTGPIOGPIO1 40 pins（1 x I2S、2 x I2C、1 x SPI/UART、8 x GPIO） GPIO2 24pin PCIE portKeyUpgrade Key & Reset KeyPower SourceDC 5V/3A TYPE-C 5V/3ALEDPower led & Status ledOS SupportAndroid 8.1 Ubuntu 16.04 Ubuntu 18.04 Debian 9PCB8 LayerDimension91mm*55.7mm