OKdo ROCK 3 Compute Module SODIMM (CM3 SODIMM) Model A 2GB/32GB with WiFi/BT

£40.20 incl. Sales Tax

OKdo ROCK 3 Compute Module SODIMM (CM3 SODIMM) Model A 2GB/32GB with WiFi/BT

OKdo ROCK 3 Compute Module SODIMM (CM3 SODIMM) Model A 2GB/32GB with WiFi/BT

  • ROCK 3 Compute Module SODIMM (CM3S) Model A based on the Rockchip RK3566 System on Chip (SoC)
  • DDR2 SODIMM form factor
  • Powerful CPU, a Power Management Unit (PMU), DRAM memory, eMMC storage, and more
  • Compatible with multiple OS, including Ubuntu 20.04, Debian 10, Buildroot, YOCTO, and Android 11/12.
  • 2GB 32bit LPDDR4X, 32GB eMMC, with Wi-Fi and Bluetooth variant

excl. Sales Tax £33.50
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Product Details


The OKdo ROCK 3 Compute Module SODIMM (CM3S) Model A is an awesome little device that packs loads of features into a tiny package. It’s based on the Rockchip RK3566 System on Chip (SoC), which means it’s got a powerful CPU, a Power Management Unit (PMU), DRAM memory, eMMC storage, and even wireless connectivity with WiFi 4 and BT 4.2. And get this, it’s all squeezed into a small DDR2 SODIMM form factor that’s just 67.6mm x 32mm. The best part is that the CM3S is a cost-effective solution that’s ready to go for a ton of different applications. It’s like a little powerhouse in your hands. The CM3S is available in various LPDDR4 RAM and eMMC size configurations, this is the 2GB RAM, with 32GB eMMC configuration.


Please note: The images above show a CM3S-specific model. This model has certain features like wireless communication capabilities or eMMC. Depending on the purchased SKU there might be variations to the populated components.

Key benefits of the ROCK 3 Compute Module SODIMM (CM3S)

The ROCK 3 Compute Module SODIMM (CM3S) will truly accelerate your product development! It packs a punch with its powerful System on Module (SoM), all while being super tiny. It offers an out-of-the-box, cost-effective solution for countless applications. Alternatively, you can speed up the prototype production process by creating a basic carrier board and you’ll be ready to ROCK in no time.

Speed up your product development
It’s the ideal SoM for product development. While it offers a cost-effective, out-of-the-box solution for a huge range of applications, you can speed up the product development process with a simple carrier board (a 2-layer baseboard is sufficient to provide access to all of the functions of the SoM), and voila! You can engineer solutions such as robotics, HMI, vending machines, smart home applications, IoT gateways, industrial control solutions, and more.

A low-power solution with a compact form factor
The ROCK CM3S is powered by the reliable Rockchip RK3566 SoC and benefits from a 64-bit Quad Cortex A55 low-power core with up to 1.6 GHz. On top of that, it features an industry-standard compliant 200pin golden finger edge connector (DDR2 SODIMM form factor) and with a form factor of just 32mm x 67.6mm, it’s a powerful little device that truly packs a punch!

More OS, more options
ROCK CM3S is super practical, as it is compatible with multiple operating systems, including Ubuntu 20.04, Debian 10, Buildroot, YOCTO, and Android 11/12. Whether you’re a Debian devotee, an Android aficionado, or an Ubuntu buff, you’ll find that the ROCK CM3S is a practical solution for your needs.

Hardware features of the ROCK 3 Compute Module SODIMM (CM3S)

The CM3S is based on a Rockchip RK3566 SoC with 64‑bit Quad Core low power cores up to 1.6GHz.

  • CPU: Quad‑core Arm® Cortex®‑A55 (ARMv8) 64‑bit @ 1.6GHz
  • GPU: Arm Mali™‑G52‑2EE, OpenGL®1/2.0/3.0/3.1/3.2, Vulkan® 1.1, OpenCL™ 2.1
  • NPU:8 TOPs@INT8, support INT8, INT16, FP16, BFP16, support deep learning frameworks such as TensorFlow, Caffe, Tflite, Pytorch, Onnx, Android™ NN, etc
  • Memory: 32bit LPDDR4X 2GB
  • Storage: eMMC 5.1 32GB
  • Display: Single display engine, HDMI2.0, Dual MIPI‑DSI
  • Multi‑Media: 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
  • High-Speed Interface: One SATA 3.0/PCIe 2.1 combo port, and one USB 2.0 OTG
  • Security: Arm TrustZone® security extension, Secure Video Path, Secure JTAG to de-bug, Secure boot, OTP and Crypto (AES/TDES/SM4/SM3/SHA256/SHA512/RSA)


  • 11 b/g/n Wireless LAN (Wi‑Fi 4)
  • BT 4.2 with BLE
  • up to 5 x I2C
  • up to 3 x SPI
  • up to 8 x UART
  • up to 12 x PWM
  • up to 60x GPIO
  • 1 x ADC
  • 2 x I2S
  • 1 x PCIe 2.0, 1 lane host (5Gbps)
  • 1 x SATA 3.0(shared with PCIe)
  • 1 x USB 2.0 OTG
  • 1 x SDIO 3.0
  • 1 x HDMI up to 4K x 2k@60Hz
  • 2 x 2 lane or 1 x 4 lane MIPI CSI camera port
  • 1 x MIPI DSI 2 lane @ 1.6Gbps per lane
  • 1 x MIPI DSI 4 lane @ 1.6Gbps per lane
  • 3V ~ 5V power input
  • 260 pins SODIMM golden finger edge connector

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.









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