The OKdo ROCK 4 Model C+ 4GB starter kit brings together everything you need to get ROCKing and making projects with your brand-new 4 C+ board in one box! You don't need to shop around, or check compatibility as we have done the hard work for you. Each kit contains the ROCK 4 Model C+ 4GB single board computer along with a reliable power supply, USB-A to USB-C cable with in-line switch, 2 x micro HDMI to HDMI cables for dual display, micro SD card to USB reader, a 32GB micro SD card with Linux operating system preloaded, and a CPU heatsink and fan for better thermal management. Perfect for anyone interested in electronics, from beginner to professional level. What's in the ROCK starter kit? ROCK 4 Model C+ 4GB single board computer. 5V/3A Universal Power supply USB to USB-C cable with in-line switch. 2 x 1M Micro HDMI to HDMI cables. 32GB MicroSD Card. (with preloaded Linux OS) MicroSD card to USB reader CPU heat sink and fan Metal enclosure Mini screwdriver