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Product Description

  • The Radxa ZERO 3W/3E is an ultra-small, high-performance single board computer based on the Rockchip RK3566, with a compact form factor and rich interfaces.
  • Tailored for a diverse user base including manufacturers, IoT developers, hobbyists, and PC DIY enthusiasts, the Radxa ZERO 3W/3E is an ultra-small, versatile platform that can be used for a wide variety of applications, including IoT devices, machine learning edge computing, home automation, education, and entertainment.
  • The ZERO 3W and ZERO 3E are basically the same size and model, but differ only in storage and network interfaces. For details, please refer to the Features section of this article.

Physical Photos

  • Radxa ZERO 3W ZERO 3W Overview

Chip Block Diagram

RK3566 block diagram


ModelRadxa ZERO 3WRadxa ZERO 3E
SoCRockchip RK3566
CPUQuad-core Cortex-A55, up to 1.6GHz
GPUArm Mali™‑G52‑2EE, Supports Arm Mali™‑G52‑2EE, OpenGL® ES1.1/2.0/3.2, Vulkan® 1.1, OpenCL™ 2.0
RAM1/2/4/8 GB LPDDR4
StorageeMMC on Board:0/8/16/32/64 GB
microSD Card
microSD Card
DisplayProvide Micro HDMI Interface:Supports 1080p60 output
Ethernet/Gigabit Ethernet, Supports POE
PoE requires additional optional HAT
WirelessWi-Fi 6 (802.11 b/g/n) BT 5.0 with BLE/
USBUSB 2.0 Type-C OTG x1
USB 3.0 Type-C HOST x1
Camera1x4 lane MIPI CSI
Others40 Pin extends Header
PowerRequires 5V/2A power adapter
Size65mm x 30mm

System block diagram

  • Radxa ZERO 3W


Documentation guidelines


Except for the other systems directory below, the other contents are based on Radxa OS (Radxa's customized system based on Debian).

Getting started

By introducing system programming, system login, accessory usage, etc., let user can get started quickly.

Radxa OS

Radxa OS is an operating system customized by Radxa based on Debian OS. This chapter introduces system login, network connection, etc to let user to be familiar with the system quickly.

System Configuration

Introduces how to use tools like rsetup or command line to use devices or function.

Application Deployment

Introduces how to deploy the applications such as Samba, Docker, PVE, OMV, LAMP, Cheese, remote control panel, etc.

Application Development

Introduces upper-layer application development, such as QT, WiringX, Mraa, etc.

Hardware Development

Introduces hardware information, such as hardware interfaces, supported accessories, etc.

Lower level Development

Introduces uboot, kernel, debian os compilation and packaging, etc.

Other Systems

Introduces other systems than Radxa OS, such as Android


Introduces supported accessory models and instructions for use.