The ROCK3 Compute Module from Radxa (Radxa CM3) is a SoM (System on Module) based
on the Rockchip RK3566 SoC in a small form factor of 55mm x 40mm. It integrates CPU/PMU/DRAM/STORAGE and wireless.
Radxa's CM3 offers an out-of-the-box, cost-effective solution for countless applications. It also simplifies and accelerates new product development.
The module is compatible with the Raspberry CM4 baseboards from Raspberry, Seed etc.
Overview of the functions:
Quad-core 64-bit high-performance solution
Radxa CM3 is powered by the Rockchip RK3566 SoC, a 64-bit Quad Cortex A55 low-power core up to 2.0Ghz. It comes with a maximum of 8GB RAM and up to 128GB eMMC storage.
With a simple carrier board (a 2-layer base board is enough to access all functions of the SoM), engineers can quickly develop solutions and prepare the boards for production.
Rich interfaces
I2C, SPI, UART, ADC, PWM, GPIO, Ethernet, CAN, PDM, USB2, USB3, I2S, MIPI,
SATA, eDP interfaces are available as well as high bandwidth PCIe 2.0 buses.
Display Capability
Dual Video Out Processor supports dual screen output via HDMI, eDP, MIPI, DP, with resolution up to 4K x 2K and a 2.5k
Powerful multimedia support
4K VP9 and 4K 10bits H264/H265 video decoding, up to 60FPS
decoding multiple 1080P video formats including VC-1, MPEG-1/2/4, VP8
1080P encoding to H.264 and VP8 formats
Small size and low power consumption
The 55mm x 40mm form factor and industry-standard 3 x 100PIN board-to-board connectors save board space and provide standardized interfaces that save board space.
Multiple operating systems support
Ubuntu 20.04 / Debian 10 / Buildroot / Android
Open documents and source code
Source code, documents, tools and utilities are freely available, community and commercial support are available to help you move your prototype into production
Widely used in various applications
Perfect SoM for Robotics, HMI, Vending Machines, Smart Home, IOT Gateway, Industrial Control, Medical Devices etc.
Detailed Specifications:
Processor:
Rockchip RK3566, Quad-Core Cortex-A55 (ARM v8) 64-bit SoC @ 2.0GHz
memory:
1GB, 2GB, 4GB or 8GB LPDDR4 (depending on variant)
Connectivity:

• Optional wireless LAN, 2.4GHz and 5.0GHz IEEE 802.11b/g/n/ac
wireless, Bluetooth 5.0, BLE with built-in and external antenna options

• Built-in Gigabit Ethernet PHY
• 1 × USB 2.0 port (high speed ), 1 × USB 3.0 port (5 Gbit/s)
• 1 × PCIe 1-Lane Host, Gen 2 (5Gbps)
• 2 x SATA ports, one shared with USB 3, one shared with PCIe
• 50 × GPIO Support
video:

• 1x HDMI up to 4K x 2K@60HZ
• 1x eDP four lanes, 2.7Gps per lane
• 2x MIPI DSI four lanes, 1.6 Gbit/s per lane
Audio:

• LINEOUT
• I2S
• PDM, supports microphone- Array
Multimedia:

• VP9/H.264/H.265 decoding 4K@60HZ
• H.264/H.265 encodes 1080P@100HZ
• OpenGL ES 3.2/OpenCL 2.0/Vulkan 1.1 GPU
input voltage: 5V DC
Connection: 3x 100P 0.5mm Pitch B2B connection
Dimensions: 55 mm × 40 mm
Long-term availability: ROCK3 CM will be produced until at least September 2029.Specification CM3 CM3 Plus Form factor: 55 mm × 40 mm 70mm x 40mm Processor: Rockchip RK3566, Quad core Cortex-A55 (ARM v8 ) 64-bit SoC @ 2.0GHz Rockchip RK3568, Quad core Cortex-A55 (ARM v8) 64-bit SoC @ 2.0GHz Memory: 1GB, 2GB, 4GB or 8GB LPDDR4 (depending on variant) Storage: 8GB, 16GB, 32GB, 64GB, 128GB (depending on variant) high performance eMMC Connectivity: - Optional wireless LAN, 2.4GHz and 5.0GHz IEEE 802.11b/g/n/ac wireless, Bluetooth 5.0, BLE with onboard and external antenna

• Onboard Gigabit Ethernet PHY
• 1 x USB 2.0 port (high speed), 1 x USB 3.0 port (5Gbps)
• 1 x PCIe 1-lane host, Gen 2 (5Gbps)
• 2 x SATA ports, one shared with USB 3, one shared with PCIe
• 50 x GPIO supporting - Optional wireless LAN, 2.4GHz and 5.0GHz IEEE 802.11b/g/n/ac wireless, Bluetooth 5.0, BLE with onboard and external antenna
• 1 x onboard Gigabit Ethernet PHY, 1x onboard GMAC
• 2 x USB 2.0 port (highspeed ),
• 1 x USB 3.0 HOST port (5Gbps), 1 x USB 3.0 OTG port (5Gbps)
• 1 x PCIe 1-lane host, Gen 2 (5Gbps)
• 1 x PCIe 2-lane(1x2, 1x1+1x1) Host, Gen 3 (16Gbps)
• 3 x SATA ports, one shared with USB 3 HOST, one shared with PCIe, one shared with USB 3 OTG
• 50 x GPIO supporting Video: - 1x HDMI up to 4K x 2K@60HZ
• 1x eDP four lanes, 2.7Gps per lane
• 2x MIPI DSI four lanes, 1.6Gbps per lane
• 1x LVDS four lanes(mux with MIPI DSI0) Audio: - LINEOUT
• I2S
• PDM, support mic array Multimedia: - VP9/H.264/H.265 decode 4K@60HZ
• H.264/H.265 encode 1080P@ 100HZ
• OpenGL ES 3.2/OpenCL 2.0/Vulkan 1.1 GPU Input power: 5V DC Connector: 3x 100P 0.4mm pitch B2B connector 4x 100P 0.4mm pitch B2B connector Production lifetime: Radxa CM3(P) will remain in production until at least Sep 2029