Features:  -WIRELESS MOBILE MINI TRAVEL ROUTER - Convert a public network(wired/wireless) to a private Wi-Fi for secure surfing.  Create a secure Wi-Fi hotspot quickly:  -OPEN SOURCE & PROGRAMMABLE - Supports FriendlyWrt , It is based on an OpenWrt distribution and works with Docker CE.  Open source and well suitable for developing IoT applications, NAS applications, smart home gateways:  -Dual Gbps Ethernet Ports - The NanoPi R4S has two Gbps Ethernet ports: one directly extended from the SoC and the other converted from a PCle. gets around 941 mbits/second download and upload.  -IMPORTANT AND REMIND not include SD card , you need an SD card to install OS and you also need power by 5V/3A . Not include wifi module.    Specifications：  Processor speed: 1.4G;  Supply current: 2A;  Power supply voltage: 5V;  Power: 1.5W/2W;    Package Including：  1 x Mini Router;  1 x USB Power Adapter 5V 4A;  1 x Type-C Data Cable