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An Upgraded ROCK 4A SBC with WiFi5 & BT5 and PoE Support

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Radxa ROCK 4B

  • Overview
  • Tech Spec
  • Documentation
  • Downloads
  • Support
  • Rockchip RK3399
    64-bit SoC

  • Dual Display 4K & 2K

  • WiFi5 & BT5

  • Gigabit Ethernet

Arm® big.LITTLE™ technology

Dual Cortex™ A72 frequency 1.8GHz and Quad Cortex™ A53 frequency 1.4GHz

AnTuTu - Total score :

Arm® Mali™ T860MP4 GPU

Support OpenGL ES1.1/2.0/3.0/3.1/3.2, OpenCL1.2,DirectX11.1 etc

FP32 Performance in GFLOPS

Experience the Charm of Dual Display and 4K

Support H.265/VP9 (HEVC) hardware decode (up to 4Kp60)

Support H.264 hardware decode (up to 1080p60)

Standard HDMI ports support displays up to 4Kp60fps

MIPI DSI interface Support 1080p@60fps

*HDMI and MIPI DSI can work at the same time, support mirror mode or extend mode.

Multiple Storage and Booting OS Solution
eMMC, TF Card and M.2 M Key Connector

High Speed and Capacity to Fulfill Diverse Storage Needs

TF Card

Supports up to 256 GB TF card


Supports up to 128 GB

M.2 M Key

Supports up to 2TB M.2 M Key NVMe SSD

Both Wired and Wireless Connectivity

Supporting 802.11 b/g/n/ac (WiFi 5) wireless LAN, BT 5.0 with BLE
Gigabit Ethernet with Power over Ethernet (PoE) support (additional HAT is required for powering from PoE)

  • Gigabit Ethernet with PoE

  • Supporting 802.11 b/g/n/ac (WiFi 5) wireless LAN

  • BT 5.0 with BLE

Various Accessories Support

Official Accessories:
  • Radxa Display 8 HD

  • Radxa ROCK Pi 23W PoE

  • Radxa M.2 Extension Board

  • Radxa Penta SATA HAT

Third Party Accessories:
  • Raspberry Pi Camera
    Module 2

  • Raspberry Pi 7" Touch Screen

Comprehensive Technical Documentation,
Active Community, and Extensive OS Support

  • Comprehensive Technical Documentation and Active Community!

    Radxa provides comprehensive technical documentation, empowering users to fully utilize their products. At the same time, they actively maintain an engaged community, fostering communication and collaboration among users.

  • Extensive Open-Source OS Support

    Experience comprehensive support for a diverse range of open-source operating systems on our SBCs. In addition to Radxa's backing, we actively collaborate with third-party OS organizations, providing you with an extensive selection of options. Empower your projects with exceptional versatility and innovation as you discover both Radxa and third-party supported OS choices here.

Additional Features

  • Camera

    MIPI CSI 2 lanes via FPC connector

    Support up to 800 MP camera

    The Camera connector features a compact 1mm pitch

  • Headphone Jack

    One 3.5mm audio jack (MIC input)

    HD codec that supports up to 24-bit/96KHz audio

  • USB 2.0

    2x USB2 Host ports

    USB 3.0

    1x USB3 OTG port

    1x USB3 HOST port

  • 40x Color GPIO

    Supporting various interface options:

    2 x UART

    2 x SPI bus

    3 x I2C bus

    1 x PCM/I2S

    1 x SPDIF

    2 x PWM

    1 x ADC

    6 x GPIO

    2 x 5V DC power pin

    2 x 3.3V power pin

Buy Radxa ROCK 4B

Radxa ROCK 4B

Choose Available Country or Region

This product is exclusively available through our network of Approved Partners. To find out more about our trusted partner network, please visit their websites.

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Small Module, Easy to Use