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Rock3/CM/CM3I/E25/getting started

< Rock3‎ | CM‎ | CM3I‎ | E25
    ROCK 3 >  Radxa E25 >  Getting started

Radxa E25 is an application board based on the CM3 Industrial(CM3i) for networking applications.

What you need


  • Radxa E25 Carrier Board
  • CM3 Industrial any variant
  • One of the Storage media below:
    • microSD, larger than 8GB.
  • Power supply
    • option 1: Radxa E25 is powered by Type-C port. Input voltage is 5V only.
    • option 2: DC 5V on the 4-pin header
  • USB Male A to Male A cable
    • If you want write image on ROCK 3 from USB OTG port or use fastboot/adb commands you need an USB Male A to Male A cable to connect E25 and PC.
  • microSD Card Reader
    • For flashing the image into microSD Card
  • Ethernet cable
    • Radxa E25 supports Internet access via WIFI or Ethernet.
    • An Ethernet cable is used to connect your Radxa E25 to a local network and the Internet.
  • Serial Console
    • Radxa E25 Use Type C as serial console ,Baud rate: 115200
    • If you need to use the serial port, please make sure that the USB port of your PC can meet the power supply requirements, or use the USB Hub for debugging


  • mini PCIe WiFi cards
    • example model: DR900VX,Intel 3165HMW
  • mini PCIe 4G/5G cellular card
    • example model: Quectel RG200, Quectel EC25
  • M.2 B Key LTE module 3042
    • example model: Quectel EM05
  • M.2 SATA SSD 2242
    • example model: Lenovo M.2 2242 SATA SSD


Model Radxa E25


Quad-core Cortex-A55, frequency 2Ghz

Mali G52

Memory 1GB, 2GB, 4GB or 8GB LPDDR4 (depending on SoM variant)
Storage eMMC (8/16/32/64/128GB)
μSD card (μSD slot supports up to 128 GB μSD card)
Support SATA 2242
Wireless Optional mini PCIe AP WiFi cards
Optional 4G/5G mobile network cards
USB 1x USB 3.0 OTG
Ethernet 2x 2.5GbE LAN
IO 10-pin expansion header
Key 1x user button
Power USB Type-C DC 5V
DC 5V on 4-pin header
Size 2.5x2.2 inch(70x75mm)


General purpose input-output (GPIO) connector

Check E25 GPIO.

System images and usage

Get your favorite system images from Radxa E25 Downloads.

And check the features of Ubuntu or Debian.

Install images

Radxa E25 supports two boot methods including booting from eMMC and booting from MicroSD. Select one of the following methods.


Check ROCK 3 FAQs first, if it doesn't help, start a new post on the forum