Choose the devices

ROC-RK3308B-CC-Plus ROC-RK3308-CC

ROC-RK3308B-CC Plus

IoT Quad-core 64-bit Main Board

ROC-RK3308B-CC Plus is a micro IoT main board which combined with RK3308B core board and backplane. It integrates high-performance Codec and hardware VAD. It can be configured with a far-field microphone array board and supports a variety of IoT systems and services. It is suitable for IoT, intelligent speech recognition, human-machine interface, industrial control, smart robots, etc.

RK3308B dedicated IoT processor

Adopts Rockchip RK3308B dedicated IoT processor which based on ARM quad-core 64-bit Cortex-A35 architecture, frequency up to 1.3GHz, integrated high-performance Codec and Hardware VAD. It can directly support up to 8 channel analog MIC arrays.

Support IoT Systems And Services

It can support a variety of voice systems and services, such as Buildroot(Linux/QT)embedded system, ROS(Robot os), and iFLYTEK, Amazon Alexa. Rich operating systems/services support can use for IoT, intelligent speech recognition and other products easily.

Configure Far-field Microphone Array Board

It can be configured with a far-field microphone array board, including 4 digital microphones, supports keyword wakeup, echo cancellation and noise reduction, VAD (Voice Activation Detection) and sound source location etc., which can significantly improve the accuracy and precision of automatic speech recognition.

Powerful Display Capability

ROC-RK3308B-CC Plus with powerful display drive capability and supports RGB / MCU display screens of 4 inches / 7 inches, etc., and can support the resolution of 1280×720, it is suitable for Human-Machine Interaction, smart home, and other application scenarios.

Support Multi-touch

It supports multi-touch, quick response, sensitive touch, stable and smooth operation.

Dual RJ45 Ethernet Ports

With dual RJ45 Ethernet ports that speed up to 100M bps, it is suitable for industrial control and other scenarios.

Rich Expansion Interface

With PWM×8, I2C×3, UART×5, SPI×2, I2S×2, ADC×4, LineOut and other expansion interfaces to meet the needs of various application scenarios.

Voice Call

Not limited by transmission distance, keep the call in the place with network, realize functions such as the automatic storage of call recording. It widely used in fields such as finance, education, transportation, medical treatment, etc.

Smart Home

Equipped with touch screen, realize human-computer interaction, supports functions such as voice control and remote management. It's great for scenes such as entrance guard, kitchen, appliances and bathroom to construct smart and convenient living conditions.

Smart Sweeping Robot

It with interfaces such as PWM, I2C, SPI, etc., which can be connected with components such as lidar sensor, ultrasonic sensor, infrared sensor, hall sensor and LED indicator, etc., to realize functions of accurate positioning, obstacle avoidance, fall prevention, intelligent path planning, smart alarming, automatic recharging detection, etc.

Open SDK

Open SDK, tutorials, technical materials and development tools to make development easier and more convenient.


Widely used in scenes such as IoT, intelligent voice interaction, audio input or output, etc.

  • IoT Devices

  • Smart Appliances

  • Intelligent Vehicle

  • Sweeping Robot

  • Speech Recognition

  • Speech Translation

  • Smart player

  • Human–Machine Interaction



RK3308B (28nm process)


Quad-core 64-bit ARM Cortex-A35, frequency up to 1.3GHz


4GB eMMC:Support 4G/8G/16G/32G/64G/128G

NandFlash:Support 128MB/256MB

SPI Flash:Support 16MB ~512 MB

Support MicroSD (TF) Card Slot expansion

RAM 256M DDR3(128MB ~ 512MB)
Hardware Features

Dual RJ45 Ethernet ports (100M bps), support POE (external expansion module)

POE(802.3AF, Output Power 15.4W)


Support 2.4GHz WiFi, support 802.11/b/g/n protocol


Support RGB / MCU display (up to support 720P resolution)


Built-in CODEC, including ADC x 8

Integrated high-performance Codec and Hardware VAD, support up to 8 channel analog MIC arrays directly

Support digital audio interface(8CH I2S/TDM x 2, 8CH PDM, 2CH I2S/PCM)


USB 2.0×1, Type-C×1(OTG), USB2.0×1(Lead-out by the pin)


Debug×1(Lead-out by the pin)


PWM×3, I2C×3, UART×3, SPI×1, I2S×1, ADC×4, LineOut

Microphone Array

Configured with a far-field microphone array board, including 4 digital microphone/analog microphone, supports keyword wakeup,

echo cancellation and noise reduction, VAD (Voice Activation Detection) and sound source location, etc.

Operating Temperature

0℃ - 60℃


Support multiple operating systems, such as Buildroot, Linux + Mini GUI / QT, ROS(Robot Operating System)

Support a variety of voice systems and services, such as iFLYTEK, Amazon Alexa and so on.


95.15mm×60.00 mm