The NanoPi R2S(as "R2S") is an open-source platform with dual-Gbps Ethernet ports The NanoPi R2S uses the RK3328 SoC. It has two Gbps Ethernet ports and 1G DDR4 RAM. Ported an OpenWrt system for it. It works with Docker CE. It is a good platform for developing IoT applications, NAS applications, smart home gateways, etc. Hardware Spec CPU: Rockchip RK3328, Quad-core -A53 DDR4 RAM: 1GB Color: black+blue Material: PCB+Metal Network: Internal 10/100/1000M Ethernet Port x 1 USB3.0 converted 10/100/1000M Ethernet Port x 1 USB2.0 Host: Type-A x1 For SD Slot x 1 MicroUSB: power input and USB Slave Debug Serial Port: 3.3V TTL, 3-pin 2.54mm pitch connector LED: LED x 3 KEY: KEY x 1 programmable PC Size: 55.6 x 52mm Power Supply: DC 5V/2A Temperature measuring range: 0℃ to 80℃ OS/Software: U-boot,-Core,OpenWrt Package Contents: 1 x case 1 Only the above package content, other products are not included. Note: Light 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.