OKdo ROCK 3 Compute Module (CM3) 4GB/32GB with WiFi/Bluetooth


OKdo ROCK 3 Compute Module (CM3) 4GB/32GB with WiFi/Bluetooth

OKdo ROCK 3 Compute Module (CM3) 4GB/32GB with WiFi/Bluetooth

  • Accelerate your design with the ROCK 3 Compute Module (CM3)
  • Powerful Rockchip RK3566 System on Chip (SoC)
  • Quad-core Arm® Cortex®-A55 CPU & Arm Mali™-G52-2EE GPU
  • 4GB LPDDR4 RAM, 32GB eMMC flash storage
  • Wireless connectivity, including WiFi® 5 and Bluetooth® 5.0
  • Compact board, easily integrated into embedded applications

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Product Details


The ROCK 3 Compute Module (CM3) is an incredible, high-performing System on Module (SoM) based on a powerful Rockchip RK3566 System on Chip (SoC) and 4GB LPDDR4 RAM. With a Quad-core Arm® Cortex®-A55 CPU and Arm Mali™-G52-2EE GPU and 32GB eMMC storage, the CM3 will accelerate your design development and increase the performance and capabilities of your applications. ROCK CM3 benefits from multiple class-leading features, including wireless connectivity, such as WiFi® 5, Bluetooth® 5.0 and Gigabit Ethernet, and extensive interface functionality, including audio and video interfaces, perfect for various multimedia applications. Developed by OKdo Technology in collaboration with Radxa, the ROCK CM3 is an out-of-the-box, cost-efficient solution for any embedded applications.


What are the key benefits of the ROCK 3 Compute Module (CM3)?

Out-of-the-box, cost-efficient solution 

The CM3 will accelerate the development of your design applications.

Reliable and powerful SoC

Based on the Rockchip RK3566 System on Chip (SoC).

Perfect for multimedia applications

The CM3 benefits from an Arm Mali™-G52-2EE graphic processing unit, audio and video interfaces, and an HDMI port supporting up to 4K x 2k@60Hz. 

Compact size for easy integration into different designs

Its compact size of just 55mm x 40mm allows it to be easily integrated into various embedded applications.

Flexible storage capacity

4GB LPDDR4 RAM and 32GB eMMC flash storage which can be used for OS and data storage.

Wireless connectivity 

Practical SoM that offers several wireless connectivity opportunities, including WiFi 5, Bluetooth 5.0 with BLE and Gigabit Ethernet.

Multiple onboard interfaces

An extensive list of onboard interfaces allowing you to be highly flexible with applications of this compute module. 


If you want to learn more about customisation or to buy in bulk, contact us here

Technical Specifications

SoC Rockchip RK3566 SoC with 64-bit Quad Core low power cores up to 2.0GHz
CPU Quad-core Arm Cortex-A55 (ARMv8) 64-bit @ 2.0GHz
GPU Arm Mali-G52-2EE, OpenGL® ES1.1/2.0/3.0/3.1/3.2, Vulkan® 1.1, OpenCL™ 2.1
NPU 1 TOPs@INT8, support INT8, INT16, FP16, BFP16, support deep learning frameworks such as TensorFlow, Caffe, Tflite, Pytorch, Onnx, Android™ NN, etc.
Memory 32bit DDR4/3/3L/LPDDR4/4X/3 and support eMMC 5.1 and SFC
Display Single display engine, HDMI2.0, eDP 1.3, Dual MIPI-DSI, combo with single LVDS, 24bit RGB/BT1120 and EBC interface
Multimedia 4K H.265/H.264/VP9 video decoder and 1080p@60fps H.264/H.265 video encoder
Video input 8M Pixel ISP and 1 x 4 lanes or 2 x 2 lanes MIPI CSI-2 and DVP interface
Audio interface I2S0/I2S1 with 8 channels, IS2/I2S3 with 2 channels, SPDIF0, PDM0 with 8 channels, TDM) with 8 channels and Voice Activity Detection (VAD)
High-Speed Interface One USB 3.0 host, two SATA 3.0, one PCIE2.1, two SerDes (serialiser/deserialiser) lanes, dual USB 2.0 host and one USB 2.0 OTG and a single RGMII interface
Security Arm TrustZone® security extension, Secure Video Path, Secure JTAG to debug, Secure boot, OTP and Crypto (AES/TDES/SM4/SM3/SHA256/SHA512/RSA)
Power Requirements The power input into the SoM is 5VDC at 5A
Supported Software Debian/Ubuntu Linux support

Android 11 support

Operating temperature 0°C to 60°C
Connectivity WiFi 5, Bluetooth 5.0 with BLE, Gigabit Ethernet

Are you ready to learn more about ROCK and get creative whilst trying our latest projects? Discover our blogs and visit our Project Hub for more exciting stuff about ROCK.


  • 802.11 b/g/n/ac Wireless LAN (Wi-Fi 5)
  • Bluetooth 5.0 with BLE
  • 8 x I2C
  • 4 x SPI
  • 8 x UART
  • 9 x PWM
  • 50 x GPIO
  • 2 x ADC
  • 1 x Gigabit Ethernet PHY
  • Support PDM with microphone array
  • I2S
  • 2 x SATA
  • 1 x PCIe 2.0, 1 lane host (5Gbps)
  • 1 x USB 2.0
  • 1 x USB 2.0 OTG
  • 1 x USB 3.0 (5Gbps)
  • 1 x SDIO 3.0
  • 1 x HDMI up to 4K x 2k@60Hz
  • 1 x eDP four lanes (2.7 Gbps per lane)
  • 2 x MIPI DSI @ 1.6Gbps per lane
  • 2 x MIPI CSI
  • 1 x 2 lane MIPI CSI camera port
  • 1 x 4 lane MIPI CSI camera port
  • 1 x LVDS combo four lanes, mux with MIPI DSIO
  • eMMC size: 32GB
  • 3 x 100 pins 0.4mm pitch B2B connector









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