OKdo ROCK 3 Model A 4GB Single Board Computer Rockchip RK3568 Arm Cortex-A55

£63.06 incl. Sales Tax

OKdo ROCK 3 Model A 4GB Single Board Computer Rockchip RK3568 Arm Cortex-A55

OKdo ROCK 3 Model A 4GB Single Board Computer Rockchip RK3568 Arm Cortex-A55

  • ROCK 3A SBC based on the reliable Rockchip RK3568 SoC
  • Quad core Armv8.2‑A Cortex®‑A55 CPU and Arm Mali™ G52 GPU
  • 32-bit LPDDR4 4GB RAM and eMMC socket
  • HDMI® 2.0 port supporting display up to 4K@60fps resolution
  • M.2 E Key socket with PCIe 2.0 interface, SDIO interface, UART interface, and USB interface enabling high-speed WiFi/BT connectivity and standard M.2 Wireless modules.
  • Compact form factor

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Product Details


The OKdo ROCK 3 Model A (ROCK 3A) is a robust single board computer based on the reliable Rockchip RK3568 SoC in a compact form factor. What it lacks in size it more than makes up for with its awesome features, including Quad core Armv8.2‑A Cortex®‑A55 CPU, Arm Mali™ G52 GPU, near CD quality audio, HDMI 2.0 port supporting displays up to 4K@60pfs resolution, multiple connectivity, storage possibilities and compatible with a wide range of software operating systems. The ROCK 3A offers class-leading performance. Whether you’re a hobbyist, IoT enthusiast, or a maker looking to create innovative applications you can rely on the ROCK 3A being a reliable and extremely capable platform for bringing your ideas to life. It’s an awesome little board!


Key benefits of the ROCK 3A single board computer

Reliable Rockchip SoC

ROCK 3A provides reliable and capable performance based on the Rockchip RK3568 SoC, Quad core Armv8.2‑A Cortex®‑A55 up to 2.0GHz, Arm Mali™ G52 GPU, and 32-bit LPDDR4 GB RAM. You can be certain that despite its size the ROCK 3A will deliver outstanding performance.

0.8 TOPs NPU for AI applications

ROCK 3A benefits from an NPU with up to 0.8 TOPS for developing AI applications.

Handy Power On/Off button for safe shutdowns

How does the idea of shutting down your ROCK 3A at the touch of a button without the risk of corrupting storage sound? The ROCK 3A features a built-in On/Off power button meaning you can perform safe shutdowns by simply pressing a button. ROCK 3A offers this huge convenience as standard, allowing you to be flexible with your applications.

More OS, more options

ROCK 3A is extremely practical, as it is compatible with multiple operating systems, including Android 11, Debian/Ubuntu Linux, the full implementation of the Arm architecture v8‑A instructions set, and others.

No more storage limitations

ROCK 3A benefits from extensive storage capacity, including 32-bit LPDDR4 4GB RAM and a high-speed eMMC socket for eMMC modules which can be used for OS and data storage. The eMMC socket is compatible with readily available industrial pinout and form factor hardware.

Highly compatible with SBC accessories

The 40-pin header supports a wide range of interface options, providing the ROCK 3A with a plethora of connectivity capabilities ensuring compatibility with almost every accessory you could think of. Due to the dual functionality of many of the pins, the ROCK 3A opens the possibilities for advanced accessories, the world is your oyster!

Supports 4K60fps display

With an Arm Mali™ G52 graphics processing unit (GPU) at its heart, the ROCK 3A is ideal for multimedia applications, such as videos, and signage. The board benefits from camera and display interfaces, HDMI 2.0 port supporting display up to 4K@60fps resolution, near-CD-quality audio output through a 4-ring 3.5mm audio jack with mic input, and more.


Struggling with SBC stock shortages? Don’t waste time stock hunting as OKdo and Radxa ensure long-term stock availability of the ROCK 3A allowing you to focus on developing incredible design applications.

Who is Radxa?

OKdo has an exclusive partnership with Radxa to manufacture and distribute ROCK Single Board Computers (SBCs) and ROCK System on Modules (SoMs). Radxa is a technical startup founded in 2013 that focuses on the design, manufacture, and production of open-source hardware products that include the range formerly known as Rock Pi.


  • 1x M.2 E-key connector for WiFi/BT supports WiFi6
  • 1 x M.2 M-key connector for SSD
  • 1x Micro SD card slot
  • HDMI 2.0 port supporting displays up to 4K@60fps resolution
  • 2x USB 2.0 HOST ports
  • 1x USB 3.0 HOST port, 1x USB 3.0 OTG/HOST port
  • 1x Gigabit Ethernet port (supports PoE (Power Over Ethernet) with add‑on PoE HAT)
  • 1x camera port (2‑lane MIPI CSI)
  • 1x display port (2‑lane MIPI DSI)
  • 3.5mm audio jack with mic
  • 40x user GPIO supporting various interface options: 5 x UART, 1 x SPI bus, 2 x I2C bus, 1 x CAN, 6 x PWM, 1 x ADC, 6 x GPIO, 2 x 5V DC power in, 1 x 3.3V power pin

Technical Specifications

SoC Rockchip RK3568
Processor Quad‑core Arm® Cortex®‑A55 (ARMv8) 64‑bit @ 2.0GHz
GPU Arm Mali™ G52 GPU, supporting OpenGL® ES1.1, 2.0 and 3.2, OpenCL® 2.0, and Vulkan® 1.1
Memory 32-bit LPDDR4 4GB RAM
Power Requirements The ROCK 3A supports various power supply technologies including smart power adapter as well as fixed voltage:

USB Type‑C™ PD V2.0 supporting 9V/2A, 12V/2A, 15V/2A and 20V/2A.

Qualcomm® Quick Charge™ 2.0 QC3.0/2.0 adapter 9V/2A and 12V/1.5A.

Power adapter with fixed voltage in 6V to 24V range on the USB Type‑C™ port

5V Power applied to the GPIO PIN 2 & 4

HDMI 1x HDMI 2.0 port supporting display up to 4K@60fps resolution
USB 2x USB2 HOST ports

1x USB3 HOST port hardware switch for host/device switch

1x USB3 OTG port

Connectivity M.2 E-key socket with PCIe 2.0 interface, SDIO interface, UART interface, and USB interface enabling high-speed WiFi/BT connectivity and standard M.2 Wireless modules.
MIPI 1x 2 lane DSI

1x 2 lane CSI

Storage eMMC
External Antenna NO
Software ARMv8 Instruction Set

Debian/Ubuntu Linux support

Android 11 support

Hardware access/control library for Linux/Android

Temperature Operation temperature: 0~50 ℃

Key product features of the ROCK 3A

Pinout Diagram:


Need some inspiration to help you create amazing applications with your brand-new ROCK 3A? Check out our resources below:


What operating systems is ROCK 3A compatible with?
The ROCK 3A is equipped with the ARMv8 Instruction Set, making it compatible with Debian/Ubuntu Linux, and Android 11, as well as a Hardware access/control library for Linux/Android.

What applications is the ROCK 3A ideal for?
ROCK is extremely versatile and will satisfy the requirements of a huge variety of applications. Considering the ROCK 3A’s tech specs, price, and sustainability it is ideal for a range of applications including, but not limited to:

  • Agriculture Drones
  • Automotive Systems
  • Human Machine Interfaced (HMI)
  • Remote Patient Monitoring Systems
  • Slot Machine Preventative Maintenance
  • Vehicle Tracking Systems

For more details of exactly what ROCK is capable of, check out our Ultimate Guide to ROCK or get in touch with our expert team to discuss your requirements.

Is the ROCK 3A suitable for developing AI applications?
Yes, ROCK 3A benefits from an NPU with up to 0.8 TOPS for developing AI applications. If you require something with a more TOPS, why not check out our ROCK 5 Series?

Are there any getting-started guides available for ROCK?
Yes, please check the Resources section on this page or our Getting Started Guides hub.

Can ROCK boot from USB?
No, but the ROCK 3A can boot from an SD card and eMMC.

Can ROCK run multiple programs?
Yes, ROCK can run multiple programs/scripts simultaneously.

Does it support accessories?
Yes, thanks to its 40-pin GPIO header it’s compatible with a range of SBC accessories on the market. We also stock a range of ROCK accessories in our ROCK Shop.









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