Radxa first teased their ROCK 3B back in 2021 when the smaller and lower power ROCK 3A launched, and has just now finalized the design and specs with what they call the "PI-CO ITX" form factor; a tad over Pico-ITX size but with a standard Raspberry Pi 40-pin GPIO and rear-facing I/O. The board measures 100 x 75 mm which means it definitely won't be fitting into any housings made for the Raspberry Pi, but with the I/O aligned to one side there's a chance some Pico-ITX cases could still fit. This closely mirrors the already released ROCK 5B, but where that SBC is targeting a much higher performance and price point (with the cheapest 4 GB model MSRP set at $130 USD), the ROCK 3B starts at only $45 USD for the 2 GB, and even the 8 GB variant is only $75 USD.
Don't be fooled into thinking the lower price means Radxa didn't pack all that available board space with features. The ROCK 3B is bristling with expansion to justify its larger size.
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Don't be fooled into thinking the lower price means Radxa didn't pack all that available board space with features. The ROCK 3B is bristling with expansion to justify its larger size.
- Rockchip RK3568 2.0 GHz quad-core 64-bit ARM Cortex-A55
- Mali G52 GPU supporting OpenGL ES 3.2, OpenCL 2.0, Vulkan 1.1
- VPU supporting 4K60 H.264/H.265/VP9 decoding and 1080p60 H.264/H.265 encoding
- AI NPU with support for TensorFlow, TF-Lite, Pytorch, Caffe, ONNX, MXNet, Keras, and Darknet
- LPDDR4 - 2 GB, 4 GB, or 8 GB
- M.2 E-Key PCI-E 2.0 for optional WiFi 6 module
- M.2 B-Key for 4G LTE/5G cellular, SATA, USB
- M.2 M-Key PCI-E 3.0 slot for NVMe SSDs
- Rear-side pluggable eMMC module
- MicroSD card slot
- HDMI 2.0 supporting 4K60
- 2x USB 3.0 (1x OTG, 1x Host), 2x USB 2.0 ports
- Dual Gigabit Ethernet ports w/ PoE via optional PoE HAT (one port)
- 40-pin GPIO R Pi 3 compatible header w/ SPI, I2C, PCM/I2S, CAN, PWM, ADC, USB 2.0 and 5 V/3.3 V, GND power pins
- 2x MIPI DSI ports - one 4-lane and one 2-lane
- MIPI CSI camera connector
- 3.5 mm audio jack
- eDP connector
- Touch Panel connector
- RTC with header for battery
- IR receiver
- Power and recovery buttons
- USB Type C port for 6-20 V power, USB PD 2.0 or fixed voltage
View at TechPowerUp Main Site | Source