ROCK 4A+
A High-Performance SBC with Dual Displays and 4K
ROCK 4B+
An Upgraded ROCK 4A+ SBC with WiFi5 & BT5 and PoE Support
Rockchip OP1
64-bit processors with Arm® big.LITTLE technology
provide enhanced performance with low power consumption and high efficiency
Arm® Mali™ T860MP4 GPU
Support OpenGL ES1.1 / 2.0 / 3.0 / 3.1 / 3.2, Vulkan 1.0, OpenCL1.1, 1.2, DX11 etc
Flexible memory configurations
to meet your unique needs
RAM: 2 / 4 GB LPDDR4
Onboard eMMC: 16 / 32 / 64 / 128 GB
Immerse in 4K Delight, Exquisite Like Reality
Support H.265/VP9 (HEVC) hardware decode (up to 4Kp60)
Support H.264 hardware decodes (up to 1080p60)
Supporting mirror and extended modes for display
> Standard HDMI 2.0 up to 4k@60fps
> MIPI DSI interface support 1080p@60fps
*HDMI and MIPI DSI can work at the same time, support mirror mode or extend mode
Multiple Storage and Booting OS Solution
eMMC, Micro SD Card and M.2 M Key Connector
High Speed and Capacity to Fulfill Diverse Storage Needs
Both Wired and Wireless Connectivity
> Supporting 802.11 b/g/n/ac (WiFi 5) wireless LAN, BT 5.0 with BLE
> Gigabit Ethernet with Power over Ethernet (PoE) support (additional HAT is required for powering from PoE)
Note: Wireless LAN and Bluetooth, as well as PoE-enabled Ethernet, are only available in ROCK 4B+. ROCK 4A+ lacks built-in wireless and PoE capability.
Various Accessories Support
Official Accessories:
Third Party Accessories:
Comprehensive Technical Documentation and
Active Community
Additional Features
 Camera MIPI CSI 2 lanes via FPC connector Support up to 800 MP camera The Camera connector features a compact 1mm pitch |
 Headphone Jack One 3.5mm audio jack (MIC input) HD codec that supports up to 24-bit/96KHz audio |
 USB 2.0 2x USB2 Host ports |
|
USB 3.0 1x USB3 OTG port 1x USB3 HOST port |
 Gigabit Ethernet (ROCK 4A+) GbE LAN without Power over Ethernet (PoE) support |
 40x Color GPIO Supporting various interface options: 2 x UART, 2 x SPI bus, 3 x I2C bus, 1 x PCM/I2S, 1 x SPDIF, 2 x PWM, 1 x ADC, 6 x GPIO, 2 x 5V DC power pin, 2 x 3.3V power pin |
Interfaces
Radxa ROCK 4A+
Radxa ROCK 4B+
Tech Specs
| Specification | ROCK 4A+ | ROCK 4B+ |
|---|---|---|
| SoC | Rockchip OP1 | Rockchip OP1 |
| CPU | Dual-Core Arm® Cortex-A72 @ 2.0GHz + Quad-Core Arm® Cortex-A53 @ 1.5GHz | Dual-Core Arm® Cortex-A72 @ 2.0GHz + Quad-Core Arm® Cortex-A53 @ 1.5GHz |
| GPU | Mali-T860MP4 (OpenGL ES 1.1–3.2, Vulkan 1.0, OpenCL 1.1/1.2, DirectX 11.1) | |
| Multimedia | H.265/VP9 4Kp60 decode, H.264 1080p60 decode | |
| RAM | 2GB / 4GB LPDDR4 | 2GB / 4GB LPDDR4 |
| Storage | Onboard eMMC (16/32/64/128 GB), M.2 NVMe, microSD | Onboard eMMC (16/32/64/128 GB), M.2 NVMe, microSD |
| Display | HDMI (4Kp60), 4-lane MIPI DSI | HDMI (4Kp60), 4-lane MIPI DSI |
| Camera | 1x 2-lane MIPI CSI | |
| Wireless | Not Available | Wi-Fi 5, Bluetooth 5.0 with BLE |
| Ethernet | Gigabit Ethernet (No PoE) | Gigabit Ethernet with PoE (PoE HAT required) |
| USB | 1x USB3 OTG/HOST, 1x USB3 HOST, 2x USB2 HOST | 1x USB3 OTG/HOST, 1x USB3 HOST, 2x USB2 HOST |
| Audio | 4-ring 3.5mm Jack, 24-bit/96KHz codec | |
| GPIO | 40-pin: 2x UART, 2x SPI, 3x I2C, 1x PCM/I2S, 1x SPDIF, 2x PWM, 1x ADC, 6x GPIO, 2x 5V, 2x 3.3V | |
| Software | Debian Linux and Android support | |
| Power Input | USB PD 2.0: 9V/2A, 12V/2A QC 2.0: 9V/2A, 12V/1.5A Fixed 6–12V via USB-C 5V via GPIO Pins 2 & 4 |
USB PD 2.0: 9V/2A, 12V/2A QC 2.0: 9V/2A, 12V/1.5A Fixed 6–12V via USB-C 5V via GPIO Pins 2 & 4 |
| Operating Temp | 0–50°C recommended; throttle at 80°C; use heatsink/fan for full performance | |
| Dimensions | 85 mm x 56 mm | |
| Certification | FCC / CE | FCC / CE |
Download
Product Information
| Product Brief - Radxa ROCK 4A+ | Download |
| Schematic V1.6 - Radxa ROCK 4A+ | Download |
| SMD V1.6 - Radxa ROCK 4A+ | Download |
| 2D Drawings - Radxa ROCK 4A+ | Download |
| Schematic V1.73 - Radxa ROCK 4A+ | Download |
| SMD V1.73 - Radxa ROCK 4A+ | Download |
| 2D Drawings - Radxa ROCK 4A+ | Download |
| Product Brief - Radxa ROCK 4B+ | Download |
| Schematic V1.6 - Radxa ROCK 4B+ | Download |
| SMD V1.6- Radxa ROCK 4B+ | Download |
| 2D Drawings- Radxa ROCK 4B+ | Download |
| Schematic V1.73 - Radxa ROCK 4B+ | Download |
| SMD V1.73 - Radxa ROCK 4B+ | Download |
| 2D Drawings - Radxa ROCK 4B+ | Download |
Official Images
| Debian 11 OS for ROCK 4A+ | Download |
| Android 11 for ROCK 4A+ | Download |
| Debian 11 OS for ROCK 4B+ | Download |
| Android 11 for ROCK 4B+ | Download |
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Discussion Forum
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