The FriendlyElec NanoPi R3S is an open-source platform designed for IoT applications such as NAS systems and other network-intensive tasks. The device runs on the FriendlyWrt operating system, which is based on OpenWrt.

This compact board is powered by the Rockchip RK3566 SoC, featuring a quad-core ARM Cortex-A55 processor clocked at up to 1.8GHz. It comes with 2GB of LPDDR4X RAM and offers an optional 32GB eMMC storage.

NanoPi R3S metal case
(click image to enlarge)

For additional storage, the NanoPi R3S supports microSD cards, with multiple system installation options—via USB, a web browser, or directly using a TF card.

One of its standout features is the dual Gbps Ethernet ports, delivering fast data transfer rates. The internal Ethernet port offers up to 941 Mbps RX and 934 Mbps TX, while the PCIe-converted Ethernet port provides 936 Mbps RX and 934 Mbps TX.

NanoPi R3S ethernet ports
(click image to enlarge)

The NanoPi R3S supports various operating systems, including FriendlyWrt (based on OpenWrt 21.02), Debian Bookworm Core (command-line only), Ubuntu Noble Core (based on Ubuntu Core 24.04), and OpenMediaVault (based on Debian 12). It runs on the Linux 6.1-LTS kernel with U-boot 2017.09, making it a reliable choice for IoT and embedded projects.

More technical details and installation instructions can be found on the FriendlyElec Wiki.

NanoPi R3S interfaces
(click image to enlarge)

Specifications listed for the NanoPi R3S include:

• Memory/Storage:
  • Up to2GB DDR4x
  • Up to 32GB eMMC (optional)
  • 1x MicroSD card slot
• Display:
  • 1x MIPI-DSI
• Connectivity:
  • 1x Native Gigabit Ethernet
  • 1x PCIe Gigabit Ethernet
• USB:
  • 1x USB 3.0 Type-A
  • 1x USB Type-C (Power & Data)
• Other Features:
  • 3-pin Debug interface
  • 3x Status LEDs
  • Low-power RTC
• Operating Temperature:
  • 0℃ to 80℃
• Power:
  • 5V/2A DC (via USB Type-C)
• Mechanical:
  • 57 x 57 x 1.2mm (w/o case)\
  • 61.5 x 61.5 x 25mm (w/ case)
  • 30g (w/o case)
  • 144g (w/ case)
  • 8-Layer PCB

Further information

On the FriendlyElec website, the NanoPi R3S with 2GB RAM and 32GB eMMC is priced at $35.00, while the version without eMMC costs $30.00. A metal case is available for an additional $5.00. These configurations are also offered at similar prices by the Youyeetoo online store.