The NanoPi R3S (as "R3S") is an open source platform with dual-Gbps Ethernet ports designed and developed by FriendlyElec for IoT applications.
The NanoPi R3S mini router uses the RK3566 SoC, It has two Gbps Ethernet ports and 2G LPDDR4X RAM, 32GB eMMC (optional), FriendlyElec ported an OpenWrt system for it. It works with Docker. It is a good platform for developing IoT applications, NAS applications etc.
FriendlyElec NanoPi R3S-LTS Mini Computer Router Comparison of Differences Between Nanopi R3S and Nanopi R3S-LTS Router High Performance SoC & Dual Gbps Ethernet Ports Support Multiple Options of System Installation NanoPi R3S LTS Router Can USB WiFi Module Support List Work with Docker Applications