NanoPi R2S - image 1
FriendlyElec·sbc

NanoPi R2S

Budget dual-GbE router board with RK3328 quad-core Cortex-A53 at 1.3GHz, 1GB DDR4, native + USB 3.0 Gigabit Ethernet, and USB-C power — the most affordable open-source OpenWrt router platform at just $27.

Starting from

$27.00

Compatible Firmware

Specifications

ArchitectureARM Cortex-A53
CPU Cores4
Clock Speed1.3GHz
GPIO Level3.3V
Power Input5V/2A via USB-C
Ethernet2x Gigabit
AntennaNo
Dimensions55.6 × 52mm
Weight20g

Components

Rockchip RK3328 quad-core Cortex-A53 at 1.3GHz with Mali-450 GPU and USB 3.0 for second Ethernet.

Bus Interfaces

UART
notes: Debug UART 3-pin header

GPIO Map

GPIO1
Debug TX
digital-output
UART
GPIO2
Debug RX
digital-input
UART

Overview

The NanoPi R2S is the quintessential budget open-source router. Powered by the Rockchip RK3328 quad-core Cortex-A53 at 1.3GHz with 1GB DDR4, it provides dual Gigabit Ethernet (one native, one via USB 3.0) in a tiny 55.6×52mm package — all for just $27.

Despite its small size and low price, the R2S handles typical home router duties with ease: NAT routing, VPN, firewall, ad blocking (Pi-hole/AdGuard), DNS, and DHCP. Running FriendlyWrt (OpenWrt), it supports hundreds of packages for network monitoring, traffic shaping, and IoT gateway functions.

With USB 2.0, microSD boot, and a metal case option, the R2S has become one of the most popular DIY router platforms worldwide. Its low power consumption (5V/2A) makes it suitable for always-on deployment as a network appliance.

Use Cases

3

Resources

Where to Buy

Explore more of the directory — popular use cases, firmware, and specs to browse next.