Introduction Welcome If you’re new to ROC-RK3328-CC , the Getting Started section provides a guide for everything you need to flash the firmware and get the board running. If you need help and have read through Getting Started , check out FAQ . If you still can’t find what you need here, read Serial Debug section, get the log, contact us , and help improve this documentation. Specification ROC-RK3328-CC , the first credit card sized and affordable open source main board honored by Firefly, features: Core Quad-Core ARM® Cortex-A53 64-bit processor, with frequency up to 1.5GHz ARM Mali-450 MP2 Quad-Core GPU, supports OpenGL ES1.1/2.0, OpenVG1.1 DDR4 RAM (1GB/2GB/4GB) Connectivity 2 x USB 2.0 Host, 1 x USB 3.0 Host 10/100/1000Mb Ethernet 1 x IR Receiver Module, supports self-defined IR remote 40 pin expansion interface, contains GPIO, I2S, SPI, I2C, UART, PWM SPDIF, DEBUG Display HDMI 2.0 ( Type-A ), supports maximum 4K@60Hz display TV out, CVBS display, in accordance with 480i, 576i standard Audio I2S, supports 8 channels SPDIF, for audio output Video 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, supports H.264/H.265 Video postprocessor: de- interlacing, denoising, edge / detail / color optimization Storage High-Speed eMMC extension interface MicroSD (TF) Card Slot ( Full Specification ) This incredible ultra small board runs Android 7.1 or Ubuntu 16.04 smoothly and quietly, thanks to its low power consumption. Package & Accessories ROC-RK3328-CC standard kit contains the following items: ROC-RK3328-CC main board Micro USB cable The following accessories are highly recommended, especially when you are doing developer's work: 5V2A US Adapter, a good power source is a must have. USB Serial Adapter, for serial console debugging. eMMC Flash, provides more system performance and reliability.