The NanoPi R5S is an open-source mini router developed by FriendlyElec, featuring two 2.5G and one 1Gbps Ethernet ports. It is powered by a Rockchip RK3568B2 quad-core A55 CPU, with 4GB LPDDR4X RAM and 32GB eMMC storage. The device supports booting from TF cards and runs various operating systems such as FriendlyWRT, Android, Ubuntu Desktop, Debian, and Buildroot. It includes an HDMI 2.0 port capable of playing 4K60p H.265/H.264 videos, an M.2 NVMe SSD slot via PCIe 2.0, two USB 3.0 ports, and USB Type-C power delivery supporting 5V/9V/12V inputs. The compact size of 90 x 62 mm and a custom CNC metal case by FriendlyElec add to its portability and durability. This platform is ideal for light NAS, video playback, and networking applications, making it a versatile tool for developers, geeks, and technology enthusiasts.