# FriendlyElec NanoPi R76S

> Ultra-compact 58×58mm dual 2.5GbE router board with RK3576 octa-core, up to 4GB LPDDR4X, 32GB eMMC, and USB-C 5V power — a high-throughput mini network appliance for home lab and edge networking.

## Quick Facts

- **Brand:** FriendlyElec
- **Price:** ~$55
- **CPU:** ARM Cortex-A72 ×4 @ 2.2GHz + Cortex-A53 ×4 @ 1.8GHz
- **CPU Architecture:** ARM big.LITTLE (Cortex-A72 + A53)
- **CPU Cores:** 8
- **RAM:** 2GB / 4GB LPDDR4X
- **Flash:** 32GB eMMC
- **USB:** 1× USB 3.2 Gen1 Type-A
- **Power:** USB-C 5V
- **Operating Voltage:** 3.3V GPIO
- **Operating Temp:** 0°C to 70°C
- **Dimensions:** 58 × 58 × 1.6mm
- **SD Card:** microSD (UHS-I)

## Connectivity

- **Ethernet:** 2× 2.5 Gbps (PCIe)

## Use Cases

- home-lab-networking
- iot-gateway
- home-server
- network-automation
- embedded-linux
- wired-networking

## Components

- **RK3576** (soc): Rockchip RK3576: 4× Cortex-A72 @ 2.2GHz + 4× Cortex-A53 @ 1.8GHz, Mali-G52 MC3 GPU, 6 TOPS NPU. 8K@30fps H.265/VP9 decode, 4K@60fps H.264 encode. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.rock-chips.com%2Fa%2Fen%2Fproducts%2FRK35_Series%2F2024%2F0322%2F1299.html&ref=openhardware.directory&product=friendlyelec-nanopi-r76s&source=md-export)

## GPIO Map

| Pin | Name | Type | Functions |
|-----|------|------|-----------|
| FPC Pin 1 | UART_TX | UART | digital-output, uart |
| FPC Pin 2 | UART_RX | UART | digital-input, uart |
| FPC Pin 3 | I2C_SDA | I2C | digital-input, digital-output, i2c |
| FPC Pin 4 | I2C_SCL | I2C | digital-input, digital-output, i2c |
| FPC Pin 5 | GPIO | GPIO | digital-input, digital-output |
| FPC Pin 6 | GPIO | GPIO | digital-input, digital-output |
| FPC Pin 7 | GPIO | GPIO | digital-input, digital-output |
| FPC Pin 8 | GPIO | GPIO | digital-input, digital-output |

## Description

## Overview

The NanoPi R76S is FriendlyElec's compact dual-2.5GbE network appliance built around the Rockchip RK3576 — an octa-core SoC combining four Cortex-A72 performance cores with four Cortex-A53 efficiency cores, and a 6 TOPS NPU. At just 58×58mm it matches the footprint of the popular R3S/R4S family but upgrades networking to dual 2.5 Gigabit PCIe Ethernet ports.

The 2.5GbE ports enable multi-gigabit routing and bridging without external adapters — a key advantage for home lab users on 2.5G switches, multi-gig fiber connections, or NAS-to-router direct links. RAM is 2GB or 4GB LPDDR4X, storage is 32GB eMMC, and a microSD slot provides a fallback boot or storage option.

Video output is available via HDMI (up to 4096×2304@60Hz), and optional M.2 SDIO WiFi modules (RTL8822CE or compatible) can be added via the E-Key slot for wireless capability. A USB 3.2 Gen 1 Type-A port handles USB storage and peripherals, while a 12-pin FPC connector exposes UART, I2C, and GPIO for light GPIO expansion needs.

FriendlyWrt, Armbian, OpenWrt, Ubuntu, and Debian are all supported. The R76S is a popular choice for WireGuard/OpenVPN gateways, multi-gigabit home routers, Pi-hole DNS servers, and compact Docker hosts where network throughput matters more than raw compute.

## Where to Buy

- [FriendlyElec](https://openhardware.directory/r?to=https%3A%2F%2Fwww.friendlyelec.com%2FNanoPi-R76S-p-1749.html&ref=openhardware.directory&product=friendlyelec-nanopi-r76s&source=md-export) — 55.00

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.friendlyelec.com%2FNanoPi-R76S-p-1749.html&ref=openhardware.directory&product=friendlyelec-nanopi-r76s&source=md-export)
- [wiki](https://openhardware.directory/r?to=https%3A%2F%2Fwiki.friendlyelec.com%2Fwiki%2Findex.php%2FNanoPi_R76S&ref=openhardware.directory&product=friendlyelec-nanopi-r76s&source=md-export)
- [datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.rock-chips.com%2Fa%2Fen%2Fproducts%2FRK35_Series%2F2024%2F0322%2F1299.html&ref=openhardware.directory&product=friendlyelec-nanopi-r76s&source=md-export)

## Tags

`rk3576`, `linux`, `arm`, `sbc`, `router`, `openwrt`, `2.5gbe`, `friendlyelec`, `rockchip`, `network`

## Images

![FriendlyElec NanoPi R76S](https://nbg1.your-objectstorage.com/openhardware-directory/entities/friendlyelec-nanopi-r76s/218221ee9034.jpg)

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