Quad-Core 64-Bit

Open source main board

Firefly first ultra-small open-source main board, unique USB3.0 and DDR4 to make its performance faster and more stable. The ultra-affordable ROC-RK3328-CC is your first choice for exploring the programming world

Mini size, powerful performance

The size of a credit card but contains a strong performance, the main board uses RK3328 quad-core A53x4 64-bit processor, built-in powerful GPU, running Android and Linux systems smoothly.

DDR4 high-performance memory

DDR4 improve frequency and bandwidth, highly configured frequency and bandwidth improve operating system fluency


Data Channel USB3.0

USB3.0 transfer speed than traditional USB2.0 upgrade 3 times, so that data is unobstructed

Support Android and Ubuntu dual system

ROC-RK3328-CC supports Android and Ubuntu dual system, can be used for software development, office learning, smart embedded, DIY electronics, gaming and so on

Rich expansion interface

The 40PIN expansion interface contains GPIO, I2S, SPI, I2C, UART, PWM SPDIF, DEBUG. The unique EMMC memory expansion interface can support addition EMMC memory



Rockchip RK3328


Quad-Core ARM® Cortex-A53 64-bit processor, Frequency up to 1.5GHz


ARM Mali-450 MP2 Quad-Core GPU

Support OpenGL ES1.1/2.0, OpenVG1.1


Support 4K VP9 and 4K 10bits H265 / H264 video decoding, up to 60fps

1080P multi-format video decoding(WMV, MPEG-1/2/4, VP9, H.264, H.265)

1080P video coding, support H.264/H.265

Video postprocessor: de-interlacing, denoising, edge / detail / color optimization

Memory 1GB/2GB/4GB DDR4 RAM

High-Speed eMMC extension interface

MicroSD (TF) Card Slot

Hardware Features

10/100/1000Mbps Ethernet


1 x HDMI 2.0 ( Type-A ), support maximum 4K@60Hz display

1x TV out, CVBS display, in accordance with 480i, 576i standard


1 x SPDIF, for audio output

1 x I2S, support 8 channels

USB 2 x USB2.0 HOST,1 x USB3.0 HOST
IR 1 x IR Receiver Module,Support self-defined IR remote
LED 1 x Power Status LED (Blue),1 x User Defined LED (Green)
Button 1 x Recover Button
Debugging 1 x Serial Console,for debugging
Reserved Interface

40pins 2.54mm header:

support I2S、SPI、I2Cx2、UARTx2、PWM、SPDIF interfaces

Power DC12V - 2A ( via Micro USB)
OS Android 7.1.1 , Ubuntu 16.04 , u-boot
Programming support C、C++、Java、Shell、Pyhon etc
PCB Size 85mm x 56mm (8 Layer design, Immersion gold process)
Weight 36g