Features: brand new and high quality NanoPi R4S is a new of ultra-small ARM computer. It uses a 64-bit quad-core RK3328 Cortex A53 processor and comes with standard 1GB/4GB 64bit DDR4 memory. Large amount of data transmission, fast and high calculation performance. This Mini Router Convert a public network to a private Wi-Fi for secure surfing. Create a secure Wi-Fi hotspot quickly. 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, for smart home gateways. 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. Specifications: CPU Model: Rockchip RK3399 Number of Cores: 64-bit Dual Core Cortex-A72 + Quad Core Cortex-A53 GPU:Mali-T864 GPU, supports OpenGL®ES1.1/2.0/3.0/3.1, OpenVG1.1, OpenCL™, DX11, and AFBC VPU: 4K VP9 and 4K 10bits H265/H264 60fps decoding, Dual VOP, etc PMU: RK808-D PMIC, cooperated with independent for DC/for DC, enabling DVFS, software power-down, RTC wake-up, system sleep mode Memory RAM: 1GB DDR3/4GB LPDDR4 Storage: USB 3.0 Host x2: USB Type A USB 2.0 Host x1: 2.54mm 4pin header Type-C x1: Power Only Pin header GPIO: 2.54mm pitch 2x5pin header, including I2C x1, SPI x1 Serial Debug Port x1: 2.54mm pitch 3pin header, 3V level, 1500000bps LED: PWR LED (Red) x1 STAT LED (Green) x1 LAN LED (Green) x1 WAN LED (Green) x1 RTC: 2 Pin 1.27/1.25mm RTC battery input connector Fan: 5V Fan connector Working temperature: -20 to 70 Power:DC 5V/3A, via USB-C connector or Pin header OS Support: FriendlyCore 20.04 (64-bit) (Linux-4.19.111 + U-boot-2017.09) FriendlyWrt 19.07.4 (64-bit) (Linux-5.4.75 + U-boot-2017.09) Size:approx. 6.6x6.6cm/2.6x2.6in Package Includes: 1PC x Nanopi R4S Mini Router note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!